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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 20-F/A

(Amendment No. 1)

(Mark One)



| ̈ | REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ------------------------------------------------------------------------------------------------

or



|x | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ------------------------------------------------------------------------------------

For the fiscal year ended December 31, 2011.

or



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

For the transition period
from            to

or



| ̈ | SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | -------------------------------------------------------------------------------------------

Date of event requiring this shell company report

Commission file number: 000-51469

Baidu, Inc.

(Exact name of Registrant as specified in its charter)

N/A

(Translation of Registrants name into English)

Cayman Islands

(Jurisdiction of incorporation or organization)

Baidu Campus

No. 10 Shangdi 10th Street

Haidian District, Beijing 100085

The Peoples Republic of China

(Address of principal executive offices)

Jennifer Li, Chief Financial Officer

Telephone: +(86 10) 5992-8888

Email: ir@baidu.com

Facsimile: +(86 10) 5992-0000

Baidu Campus

No. 10 Shangdi 10th Street,

Haidian District, Beijing 100085

The Peoples Republic of China

(Name, Telephone, Email and/or Facsimile number and Address of Company Contact Person)

Securities registered or to be registered pursuant to Section 12(b) of the Act:



|                                                                                                                                    |  |  |  |                                                              
|----------------------------------------------------------------------------------------------------------------------------------- |  |  |  | -------------------------------------------------------------
|Title of Each Class                                                                                                                 |  |  |  | Name of Each Exchange on Which
Registered                    
|American depositary shares (ten American depositary shares representing one Class A ordinary share, par value US$0.00005 per share) |  |  |  | The NASDAQ Stock Market LLC (The NASDAQ Global Select Market)
|                                                                                                                                    |  | 
|Class A ordinary shares, par value US$0.00005 per share*                                                                            |  |  |  | The NASDAQ Stock Market LLC (The NASDAQ Global Select Market)



|* | Not for trading, but only in connection with the listing on The NASDAQ Global Select Market of American depositary shares.
|- | --------------------------------------------------------------------------------------------------------------------------

Securities registered or to be registered pursuant to Section 12(g) of the Act:

None

(Title of Class)

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:

None

(Title of Class)

Indicate the number of outstanding shares of each of the Issuers classes of capital or common stock as of the close of the period covered by the
annual report.

27,111,117 Class A ordinary shares and 7,803,000 Class B ordinary shares, par value US$0.00005 per share, as
of December 31, 2011.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the
Securities Act.    Yes  x    No   ̈

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of
1934.    Yes   ̈    No  x

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months
(or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past
90 days.    Yes  x    No   ̈

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to
Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No   ̈

Indicate
by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of accelerated filer and large accelerated filer in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated
filer  x                 Accelerated
filer   ̈                 Non-accelerated filer   ̈

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:



|             |  |                                                                                                          |  |         
|------------ |  | -------------------------------------------------------------------------------------------------------- |  | --------
|U.S. GAAP  x |  | International Financial Reporting Standards as issued by the
International Accounting Standards Board   ̈ |  | Other   ̈

If Other has been checked in response to the previous question, indicate by check mark which financial
statement item the registrant has elected to follow.    Item 17   ̈     Item 18   ̈

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act).    Yes   ̈    No  x

(APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PAST FIVE YEARS)

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities
Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court.    Yes   ̈    No   ̈









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TABLE OF CONTENTS



|                  |  |  |   | 
|----------------- |  |  | - | 
|EXPLANATORY NOTE  |  |  | 2 | 
|Item 19. Exhibits |  |  | 3 | 
|SIGNATURES        |  |  |   | 



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EXPLANATORY NOTE

This Amendment No. 1 (Amendment No. 1) to our annual report on Form 20-F for the year ended December 31, 2011,
originally filed with the Securities and Exchange Commission on March 29, 2012 (the 2011 Form 20-F), is being filed solely to file a new Exhibit 4.83, and re-file Exhibit 4.58 to correct the translation of an entitys
name.

This Amendment No. 1 speaks as of the filing date of the 2011 Form 20-F on March 29, 2012. Other than as
set forth above, this Amendment No. 1 does not, and does not purport to, amend, update or restate any other information or disclosure included in the 2011 Form 20-F or reflect any events that have occurred since March 29, 2012.

As required by Rule 12b-15 of the Securities and Exchange Act of 1934, as amended, we are also filing as exhibits to
this Amendment No. 1 the certifications required under Section 302 of the Sarbanes-Oxley Act of 2002.



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|Item 19. | Exhibits
|-------- | --------



|              |  |                                                                                                                                                                                                                                                                                                   
|------------- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description of Document                                                                                                                                                                                                                                                                           
|              | 
|1.1           |  | Third Amended and Restated Memorandum and Articles of Association of the Registrant (incorporated by reference to Exhibit 99.2 of Form 6-K furnished with the Securities and Exchange
Commission on December 17, 2008)                                                                            
|              | 
|2.1           |  | Registrants Specimen American Depositary Receipt (incorporated by reference to Exhibit 1 of the prospectus filed with the Securities and Exchange Commission on January 5, 2009
pursuant to Rule 424(b)(3) under the Securities Act)                                                             
|              | 
|2.2           |  | Registrants Specimen Certificate for Class A Ordinary Shares (incorporated by reference to Exhibit 4.2 of Amendment No. 5 to our Registration Statement on Form F-1 (file no.
333-126534) filed with the Securities and Exchange Commission on August 2, 2005)                                   
|              | 
|2.3           |  | Form of Deposit Agreement among the Registrant, the depositary and holder of the American Depositary Receipts (incorporated by reference to Exhibit 4.3 to our Registration Statement
on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)       
|              | 
|4.1           |  | Second Amended and Restated Shareholders Agreement dated June 9, 2004 among the Registrant and other parties therein (incorporated by reference to Exhibit 4.4 of our Registration
Statement on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)
|              | 
|4.2           |  | 2000 Option Plan (amended and restated effective December 16, 2008) (incorporated by reference to Exhibit 99.3 of Form 6-K furnished with the Securities and Exchange Commission on
December 17, 2008)                                                                                            
|              | 
|4.3           |  | 2008 Share Incentive Plan (incorporated by reference to Exhibit 99.4 of Form 6-K furnished with the Securities and Exchange Commission on December 17, 2008)                                                                                                                                      
|              | 
|4.4           |  | Form of Indemnification Agreement with the Registrants directors (incorporated by reference to Exhibit 10.3 of our Registration Statement on Form F-1 (file no. 333-126534)
filed with the Securities and Exchange Commission on July 12, 2005)                                                  
|              | 
|4.5           |  | Form of Employment Agreement between the Registrant and an Executive Officer of the Registrant (incorporated by reference to Exhibit 10.4 of our Registration Statement on Form F-1
(file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)                     
|              | 
|4.6*          |  | Translation of Exclusive Technology Consulting and Services Agreement dated March 22, 2005 between Baidu Online and Baidu Netcom and the supplementary agreement dated April 22,
2010                                                                                                             
|              | 
|4.7           |  | Translation of Business Cooperation Agreement dated March 22, 2005 between Baidu Online and Baidu Netcom (incorporated by reference to
Exhibit 99.3 of our Registration Statement on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12,
2005)           
|              | 
|4.8           |  | Translation of Operating Agreement dated March 22, 2005 between Baidu Online and Baidu Netcom (incorporated by reference to Exhibit 99.4 of our Registration Statement on Form F-1
(file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)                      
|              | 
|4.9           |  | Translation of Software License Agreement dated March 22, 2005 between Baidu Online and Baidu Netcom (incorporated by reference to Exhibit 99.5 of our Registration Statement on Form
F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)               



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|              |  |                                                                                                                                                                                                                                                                                                                                                                                                                                
|------------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description of Document                                                                                                                                                                                                                                                                                                                                                                                                        
|              | 
|4.10          |  | Translation of Trademark License Agreement dated March 1, 2004 between Baidu Online and Baidu Netcom and the supplementary agreement dated January 18, 2005 (incorporated
by reference to Exhibit 99.6 of our Registration Statement on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)                                                                                     
|              | 
|4.11          |  | Translation of Domain Name License Agreement dated March 1, 2004 between Baidu Online and Baidu Netcom and the supplementary agreement dated August 9, 2004 (incorporated by
reference to Exhibit 99.7 of our Registration Statement on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)                                                                                     
|              | 
|4.12          |  | Translation of Web Layout Copyright License Agreement dated March 1, 2004 between Baidu Online and Baidu Netcom and the supplementary agreement dated August 9, 2004 (incorporated by
reference to Exhibit 99.8 of our Registration Statement on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)                                                                            
|              | 
|4.13          |  | Translation of Proxy Agreement dated August 9, 2004 among Baidu Online, Baidu Netcom, Robin Yanhong Li and Eric Yong Xu (incorporated by reference to Exhibit 99.9 of our
Registration Statement on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)                                                                                                                         
|              | 
|4.14          |  | Translation of Equity Pledge Agreement dated March 22, 2005 among Baidu Online, Robin Yanhong Li and Eric Yong Xu (incorporated by reference to Exhibit 99.10 of our Registration
Statement on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)                                                                                                                              
|              | 
|4.15          |  | Translation of Exclusive Equity Purchase Option Agreement dated March 22, 2005 among Baidu Online, Robin Yanhong Li and Eric Yong Xu (incorporated by reference to Exhibit 99.11 of
our Registration Statement on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)                                                                                                           
|              | 
|4.16*         |  | Translation of Loan Agreement dated March 22, 2005 among Baidu Online, Robin Yanhong Li and Eric Yong Xu (incorporated by reference to Exhibit 99.12 of our Registration
Statement on Form F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005) and the Supplementary Agreement among Baidu Online, Baidu Netcom, Robin Yanhong Li, Eric Yong Xu and Haoyu Shen dated
January 11, 2011
|              | 
|4.17          |  | Translation of Form of Irrevocable Powers of Attorney issued by the shareholders of Baidu Netcom (incorporated by reference to Exhibit 99.13 of our Registration Statement on Form
F-1 (file no. 333-126534) filed with the Securities and Exchange Commission on July 12, 2005)                                                                                                                                               
|              | 
|4.18          |  | Translation of the form of Technology Consulting and Services Agreement between Baidu Online and a consolidated affiliated PRC entity (incorporated by reference to Exhibit 4.19 of
our Annual Report on Form 20-F filed with the Securities and Exchange Commission on June 5, 2008)                                                                                                                                          
|              | 
|4.19          |  | Translation of the form of Operating Agreement between Baidu Online and a consolidated affiliated PRC entity (incorporated by reference to Exhibit 4.20 of our Annual Report on Form
20-F filed with the Securities and Exchange Commission on June 5, 2008)                                                                                                                                                                   
|              | 
|4.20          |  | Translation of the form of Web Layout Copyright License Agreement between Baidu Online and a consolidated affiliated PRC entity (incorporated by reference to Exhibit 4.21 of our
Annual Report on Form 20-F filed with the Securities and Exchange Commission on June 5, 2008)                                                                                                                                                



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|              |  |                                                                                                                                                                                                                                                                                                                                    
|------------- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description of Document                                                                                                                                                                                                                                                                                                            
|              | 
|4.21          |  | Translation of the form of Proxy Agreement among Baidu Online, a consolidated affiliated PRC entity and the shareholders of the consolidated affiliated PRC entity (incorporated by
reference to Exhibit 4.22 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on June 5, 2008)                 
|              | 
|4.22          |  | Translation of the form of Equity Pledge Agreement between Baidu Online and the shareholder of a consolidated affiliated PRC entity (incorporated by reference to Exhibit 4.23 of our
Annual Report on Form 20-F filed with the Securities and Exchange Commission on June 5, 2008)                                                
|              | 
|4.23          |  | Translation of the form of Exclusive Equity Purchase Option Agreement between Baidu Online and the shareholder of a consolidated affiliated PRC entity (incorporated by reference to
Exhibit 4.24 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on June 5, 2008)                             
|              | 
|4.24          |  | Translation of the form of Loan Agreement between Baidu Online and the shareholder of a consolidated affiliated PRC entity (incorporated by reference to Exhibit 4.25 of our Annual
Report on Form 20-F filed with the Securities and Exchange Commission on June 5, 2008)                                                         
|              | 
|4.25*         |  | Translation of the Supplementary Agreement to Exclusive Technology Consulting and Services Agreement dated June 23, 2006 between Baidu Online and Beijing Perusal, dated April 22,
2010                                                                                                                                            
|              | 
|4.26          |  | Translation of the Operating Agreement dated June 23, 2006 between Baidu Online, Beijing Perusal, Jiping Liu and Yazhu Zhang and the supplementary agreement dated April 22, 2010
(incorporated by reference to Exhibit 4.26 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)
|              | 
|4.27          |  | Translation of the Webpage Layout Copyright License Agreement dated June 23, 2006 between Baidu Online and Beijing Perusal (incorporated by reference to Exhibit 4.27 of our Annual
Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                       
|              | 
|4.28          |  | Translation of the Proxy Agreement dated June 23, 2006 among Jiping Liu, Yazhu Zhang and Baidu Online (incorporated by reference to Exhibit 4.28 of our Annual Report on Form 20-F
filed with the Securities and Exchange Commission on March 29, 2011)                                                                            
|              | 
|4.29*         |  | Translation of the Amended and Restated Equity Pledge Agreements between Baidu Online and Yazhu Zhang, and between Baidu Online and Jiping Liu, both dated January 16,
2012                                                                                                                                                        
|              | 
|4.30*         |  | Translation of the Amended and Restated Equity Purchase Option Agreements between Baidu Online, Jiping Liu and Beijing Perusal, and between Baidu Online, Yazhu Zhang and Beijing
Perusal, both dated January 16, 2012                                                                                                             
|              | 
|4.31          |  | Translation of Irrevocable Powers of Attorney issued by Jiping Liu and Yazhu Zhang, the shareholders of Beijing Perusal, both dated June 23, 2006 (incorporated by reference to
Exhibit 4.31 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                
|              | 
|4.32*         |  | Translation of the Amended and Restated Loan Agreements between Baidu Online and Jiping Liu and between Baidu Online and Yazhu Zhang, both dated January 16, 2012                                                                                                                                                                  
|              | 
|4.33          |  | Translation of the Technology Consulting and Services Agreement dated February 28, 2008 between Baidu Online and BaiduPay and the supplementary agreement dated April 22, 2010
(incorporated by reference to Exhibit 4.33 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)   



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|              |  |                                                                                                                                                                                                                                                                                                                                
|------------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description of Document                                                                                                                                                                                                                                                                                                        
|              | 
|4.34          |  | Translation of the Operating Agreement dated February 28, 2008 between Baidu Online, BaiduPay, Jun Yu and Beijing Netcom and the supplementary agreement dated April 22,
2010 (incorporated by reference to Exhibit 4.34 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)
|              | 
|4.35          |  | Translation of the Webpage Layout Copyright License Agreement dated February 28, 2008 between Baidu Online and BaiduPay (incorporated by reference to Exhibit 4.35 of our Annual
Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                      
|              | 
|4.36          |  | Translation of the Proxy Agreement between Hu Cai and Baidu Online, dated March 5, 2010 (incorporated by reference to Exhibit 4.36 of our Annual Report on Form 20-F filed with the
Securities and Exchange Commission on March 29, 2011)                                                                                      
|              | 
|4.37          |  | Translation of the Equity Pledge Agreement between Baidu Online and Hu Cai, dated March 5, 2010 (incorporated by reference to Exhibit 4.37 of our Annual Report on Form 20-F filed
with the Securities and Exchange Commission on March 29, 2011)                                                                              
|              | 
|4.38          |  | Translation of the Exclusive Equity Purchase Option Agreement between Baidu Online, Hu Cai and BaiduPay, dated March 5, 2010 (incorporated by reference to Exhibit 4.38 of our Annual
Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                 
|              | 
|4.39          |  | Translation of Irrevocable Powers of Attorney issued by Hu Cai, the individual shareholder of BaiduPay, dated March 5, 2010 (incorporated by reference to Exhibit 4.39 of our Annual
Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                  
|              | 
|4.40          |  | Translation of the Loan Agreement between Baidu Online and Hu Cai, dated March 5, 2010 (incorporated by reference to Exhibit 4.40 of our Annual Report on Form 20-F filed with the
Securities and Exchange Commission on March 29, 2011)                                                                                       
|              | 
|4.41          |  | Translation of the Technology Consulting and Services Agreement dated December 28, 2010 between Baidu HR and Baidu Online (incorporated by reference to Exhibit 4.41 of our Annual
Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                    
|              | 
|4.42          |  | Translation of the Operating Agreement dated December 28, 2010 between Baidu HR, Baidu Online and Robin Yanhong Li (incorporated by reference to Exhibit 4.42 of our Annual Report on
Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                           
|              | 
|4.43          |  | Translation of the Proxy Agreement between Robin Yanhong Li and Baidu Online dated December 28, 2010 (incorporated by reference to Exhibit 4.43 of our Annual Report on Form 20-F
filed with the Securities and Exchange Commission on March 29, 2011)                                                                         
|              | 
|4.44          |  | Translation of the Equity Pledge Agreement between Robin Yanhong Li and Baidu Online dated December 28, 2010 (incorporated by reference to Exhibit 4.44 of our Annual Report on Form
20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                                 
|              | 
|4.45          |  | Translation of the Exclusive Equity Purchase Option Agreement between Baidu HR, Baidu Online and Robin Yanhong Li dated December 28, 2010 (incorporated by reference to Exhibit 4.45
of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                    
|              | 
|4.46          |  | Translation of the Loan Agreement between Baidu Online and Robin Yanhong Li dated December 28, 2010 (incorporated by reference to Exhibit 4.46 of our Annual Report on Form 20-F
filed with the Securities and Exchange Commission on March 29, 2011)                                                                          



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|              |  |                                                                                                                                                                                                                                                                                                                                                                                         
|------------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description of Document                                                                                                                                                                                                                                                                                                                                                                 
|              | 
|4.47          |  | Translation of the Trademark Transfer Agreement between Baidu Online and Baidu Netcom dated March 1, 2010 (incorporated by reference to Exhibit 4.47 of our Annual Report on
Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                                                                                             
|              | 
|4.48          |  | Translation of the supplementary agreements dated March 11, 2010 and April 22, 2010 to the Software License Agreement dated March 22, 2005 between Baidu Online and Baidu Netcom
(incorporated by reference to Exhibit 4.48 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                      
|              | 
|4.49          |  | Translation of the supplementary agreements dated March 1, 2010 and April 22, 2010 to the Trademark License Agreement dated March 1, 2004 between Baidu Online and Baidu Netcom and
the supplementary agreement dated January 18, 2005 (incorporated by reference to Exhibit 4.49 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)
|              | 
|4.50          |  | Translation of the supplementary agreement dated March 1, 2010 to the Web Layout Copyright License Agreement dated March 1, 2004 between Baidu Online and Baidu Netcom and the
supplementary agreement dated August 9, 2004 (incorporated by reference to Exhibit 4.50 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)           
|              | 
|4.51          |  | Translation of the supplementary agreement dated April 22, 2010 to the Operating Agreement dated March 22, 2005 between Baidu Online and Baidu Netcom (incorporated by reference to
Exhibit 4.51 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                                                 
|              | 
|4.52          |  | Translation of the supplementary agreement dated March 1, 2010 to the Domain Name License Agreement dated March 1, 2004 between Baidu Online and Baidu Netcom and the supplementary
agreement dated August 9, 2004 (incorporated by reference to Exhibit 4.52 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                    
|              | 
|4.53          |  | Translations of the supplementary agreement dated April 22, 2010 to the Exclusive Equity Purchase Option Agreement dated March 22, 2005 among Baidu Online, Robin Yanhong Li and Eric
Yong Xu (incorporated by reference to Exhibit 4.53 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                         
|              | 
|4.54          |  | Translation of the Baidu Pay-for-Performance Distributors Management Agreement between Baidu Online and Baidu Netcom dated December 22, 2010 (incorporated by reference to Exhibit
4.54 of our Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 29, 2011)                                                                                          
|              | 
|4.55*         |  | Translation of the supplementary agreement by and among Baidu Online, Beijing Perusal, Jiping Liu and Yazhu Zhang dated September 6, 2011                                                                                                                                                                                                                                               
|              | 
|4.56*         |  | Translation of the supplementary agreement to the Exclusive Technology Consulting and Services Agreement between Baidu HR and Baidu Online dated September 6, 2011                                                                                                                                                                                                                      
|              | 
|4.57*         |  | Translation of the supplementary agreement to the Operating Agreement by and among Baidu Online, Robin Yanhong Li, Badu HR and Baidu Netcom dated September 6, 2011                                                                                                                                                                                                                     
|              | 
|4.58**        |  | Translation of the Termination Agreement to the Proxy Agreement between Robin Yanhong Li and Baidu Online dated September 6, 2011                                                                                                                                                                                                                                                       
|              | 
|4.59*         |  | Translation of the Proxy Agreement among Baidu Netcom, Baidu Online and Baidu HR dated September 6, 2011                                                                                                                                                                                                                                                                                
|              | 
|4.60*         |  | Translation of the supplementary agreement to the Equity Pledge Agreement by and among Robin Yanhong Li, Baidu Netcom and Baidu Online dated September 6,
2011                                                                                                                                                                                                                          



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|              |  |                                                                                                                                                                                                                                           
|------------- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description of Document                                                                                                                                                                                                                   
|              | 
|4.61*         |  | Translation of the supplementary agreement to the Equity Pledge Agreement between Baidu Netcom and Baidu Online dated September 6, 2011                                                                                                   
|              | 
|4.62*         |  | Translation of the supplementary agreement to the Exclusive Equity Purchase Option Agreement by and among Baidu Online, Robin Yanhong Li, Baidu HR and Baidu Netcom dated September
6, 2011                                               
|              | 
|4.63*         |  | Translation of Loan Agreement dated February 10, 2006 between Baidu Online and Robin Yanhong Li                                                                                                                                           
|              | 
|4.64*         |  | Translation of Loan Agreement dated March 6, 2008 between Baidu Online and Robin Yanhong Li                                                                                                                                               
|              | 
|4.65*         |  | Translation of the supplementary agreement to the Loan Agreement by and among Robin Yanhong Li, Baidu Netcom and Baidu Online dated September 6, 2011                                                                                     
|              | 
|4.66*         |  | Translation of the supplementary agreement by and among Baidu Online, Baidu HR and Baidu Netcom dated September 6, 2011                                                                                                                   
|              | 
|4.67*         |  | Translation of the supplementary agreement to the Trademark License Agreement between Baidu Online and Baidu Netcom dated January 30, 2011                                                                                                
|              | 
|4.68*         |  | Translation of the supplementary agreement to the Software License Agreement between Baidu Online and Baidu Netcom dated January 30, 2011                                                                                                 
|              | 
|4.69*         |  | Translation of the supplementary agreement to the Web Layout Copyright License Agreement between Baidu Online and Baidu Netcom dated January 30, 2011                                                                                     
|              | 
|4.70*         |  | Translation of the supplementary agreement to the Business Cooperation Agreement between Baidu Online and Baidu Netcom dated January 30, 2011                                                                                             
|              | 
|4.71*         |  | Translation of the supplementary agreement to the Domain Name License Agreement between Baidu Online and Baidu Netcom dated January 30, 2011                                                                                              
|              | 
|4.72*         |  | Translation of the Supplementary Agreement to the Amended and Restated Loan Agreement by and among Baidu Online, Robin Yanhong Li, Haoyu Shen and Zhan Wang dated August 26,
2011                                                         
|              | 
|4.73*         |  | Translation of the Supplementary Agreement to the Amended and Restated Equity Pledge Agreement by and among Baidu Online, Robin Yanhong Li, Haoyu Shen and Zhan Wang dated August 26,
2011                                                
|              | 
|4.74*         |  | Translation of the Equity Pledge Agreement between Baidu Online and Robin Yanhong Li dated December 1, 2011                                                                                                                               
|              | 
|4.75*         |  | Translation of the Supplementary Agreement by and among Baidu Online, Baidu Netcom, Robin Yanhong Li and Zhan Wang dated September 6, 2011                                                                                                
|              | 
|4.76*         |  | Translation of the Supplementary Agreement to the Amended and Restated Equity Purchase Option Agreement and its Supplementary Agreement among Baidu Online, Robin Yanhong Li, Haoyu
Shen, Baidu Netcom and Zhan Wang dated August 26, 2011
|              | 
|4.77*         |  | Translation of the Supplementary Agreement to the Operating Agreement and its Supplementary Agreement among Baidu Online, Baidu Netcom, Robin Yanhong Li, Haoyu Shen and Zhan Wang
dated August 26, 2011                                  
|              | 
|4.78*         |  | Translation of the Proxy Agreement among Robin Yanhong Li, Zhan Wang and Baidu Online dated August 26, 2011                                                                                                                               
|              | 
|4.79*         |  | Translation of Supplementary Agreement among Baidu Online, BaiduPay, Baidu Netcom and Hu Cai dated September 6, 2011                                                                                                                      
|              | 
|4.80*         |  | Translation of the Supplementary Agreement to Exclusive Technology Consulting and Services Agreement between Baidu Online and BaiduPay dated September 6, 2011                                                                            
|              | 
|4.81*         |  | Ordinary Shares Purchase Agreement between Qunar Cayman Islands Limited and Baidu Holdings Limited dated June 24, 2011.                                                                                                                   
|              | 
|4.82*         |  | Credit Facility Agreement by and among Baidu, Inc., Goldman Sachs (Asia) L.L.C. and The Bank of New York Mellon, Hong Kong Branch dated July 14,
2011                                                                                     



8



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##### Table of Contents

|              |  |                                                                                                                                                                                                                    
|------------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description of Document                                                                                                                                                                                            
|              | 
|4.83**        |  | Translation of the Loan Agreement between Baidu Online and Hu Cai dated April 27, 2010                                                                                                                             
|              | 
|8.1*          |  | List of Principal Subsidiaries and Consolidated Affiliated Entities                                                                                                                                                
|              | 
|11.1          |  | Code of Business Conduct and Ethics (incorporated by reference to Exhibit 99.14 of our Registration Statement on Form F-1 (file no. 333-126534) filed with the Securities and
Exchange Commission on July 12, 2005)
|              | 
|12.1**        |  | Certification by Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                             
|              | 
|12.2**        |  | Certification by Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                             
|              | 
|13.1*         |  | Certification by Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                             
|              | 
|13.2*         |  | Certification by Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                             
|              | 
|15.1*         |  | Consent of Maples and Calder                                                                                                                                                                                       
|              | 
|15.2*         |  | Consent of Han Kun Law Offices                                                                                                                                                                                     
|              | 
|15.3*         |  | Consent of Ernst & Young Hua Ming                                                                                                                                                                                  
|              | 
|101.INS*      |  | XBRL Instance Document                                                                                                                                                                                             
|              | 
|101.SCH*      |  | XBRL Taxonomy Extension Schema Document                                                                                                                                                                            
|              | 
|101.CAL*      |  | XBRL Taxonomy Extension Calculation Linkbase Document                                                                                                                                                              
|              | 
|101.DEF*      |  | XBRL Taxonomy Extension Definition Linkbase Document                                                                                                                                                               
|              | 
|101.LAB*      |  | XBRL Taxonomy Extension Label Linkbase Document                                                                                                                                                                    
|              | 
|101.PRE*      |  | XBRL Taxonomy Extension Presentation Linkbase Document                                                                                                                                                             



|* | Previously filed or furnished with the Annual Report on Form 20-F on March 29, 2012.
|- | ------------------------------------------------------------------------------------

|** | Filed with this Amendment No. 1 to the Annual Report on Form 20-F.
|-- | ------------------------------------------------------------------



9



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##### Table of Contents

SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing its annual report on Form 20-F and that it has duly
caused and authorized the undersigned to sign this Amendment No. 1 to its annual report on its behalf.



Baidu, Inc.By:

/s/ Robin Yanhong LiName: Robin Yanhong LiTitle: Chairman and Chief Executive Officer


Date: September 6, 2012