UNITED STATES SECURITIES AND EXCHANGE COMMISSION
 Washington, DC 20549
 Form 20-F/A
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    REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE
SECURITIES EXCHANGE ACT OF 1934
 OR
 þ
    
    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934
 For the fiscal year ended: December 31, 2009
 OR
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    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
 OR
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    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
 For the transition period from  to
 Commission file number: 1- 33208
 SOLARFUN POWER
HOLDINGS CO., LTD.
 (Exact name of Registrant as specified in its charter)
 Not Applicable
    
    Cayman Islands(Translation of Registrants name into English)
    
    (Jurisdiction of Incorporation or Organization)
 888 Linyang Road, Qidong, Jiangsu Province 226200, Peoples Republic of China  (Address of Principal Executive Offices)
 Mr. Gareth Kung
Chief Financial Officer
Telephone: 8621-26022872
E-mail: Gareth.Kung@solarfun-power.com
Fax: 8621- 26022889
26th Fl. BM Tower
218 Wusong Road
Shanghai 200080
Peoples Republic of China  (Name, Telephone, E-mail 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 RegisteredAmerican Depositary Shares 
Ordinary Shares, par value US$0.0001 per share
    
    Nasdaq Global Market
 Securities registered or to be registered pursuant to Section 12(g) of the Act:
None
 Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:
None
 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.
 Yes o No þ
 o þ
 þ o
 Yes o No o
  Large accelerated filer o
    
    Accelerated filer þ
    
    Non-accelerated filer o
  U.S. GAAP þ
    
    International Financial Reporting Standards as issued
by the International Accounting Standards Board o
    
    Other o
  o o
 o þ
  Yes o No o




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EXPLANATORY NOTE




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ITEM 19 EXHIBITS
  ExhibitNumber
    
    Description of Document1.1
    
    
    Memorandum and Articles of Association of Solarfun Power Holdings Co.,
Ltd. (incorporated by reference to Exhibit 3.1 from our F-1 registration
statement (File No. 333-139258), as amended, initially filed with the
Commission on December 11, 2006)1.2
    
    
    Form of Second Amended and Restated Memorandum and Articles of Solarfun
Power Holdings Co., Ltd. (incorporated by reference to Exhibit 3.2 from
our F-1 registration statement (File No. 333-139258), as amended,
initially filed with the Commission on December 11, 2006)2.1
    
    
    Specimen Certificate for Ordinary Shares of Solarfun Power Holdings Co.,
Ltd. (incorporated by reference to Exhibit 4.2 from our F-1 registration
statement (File No. 333-139258), as amended, initially filed with the
Commission on December 11, 2006)




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ExhibitNumber
    
    Description of Document2.2
    
    
    Form of American Depositary Receipt of Solarfun Power Holdings Co., Ltd.
(incorporated by reference to Exhibit 4.1 from our F-1 registration
statement (File No. 333-139258), as amended, initially filed with the
Commission on December 11, 2006)2.3
    
    
    Form of Deposit Agreement Form of Deposit Agreement, among Solarfun Power
Holdings Co., Ltd., the depositary and owners and holders of the American
Depositary Shares (incorporated by reference to Exhibit 4.3 from our F-1
registration statement (File No. 333-139258), as amended, initially filed
with the Commission on December 11, 2006)4.1
    
    
    Share Purchase Agreement, dated June 6, 2006, in respect of the issue of
series A convertible preference shares of Solarfun Power Holdings Co.,
Ltd. (incorporated by reference to Exhibit 4.4 from our F-1 registration
statement (File No. 333-139258), as amended, initially filed with the
Commission on December 11, 2006)4.2
    
    
    Shareholders Agreement, dated June 27, 2006, among Solarfun Power Holdings
Co., Ltd. and other parties therein (incorporated by reference to Exhibit
4.5 from our F-1 registration statement (File No. 333-139258), as amended,
initially filed with the Commission on December 11, 2006)4.3
    
    
    Registration Rights Agreement, dated June 27, 2006, among Solarfun Power
Holdings Co., Ltd. and other parties therein (incorporated by reference to
Exhibit 4.6 from our F-1 registration statement (File No. 333-139258), as
amended, initially filed with the Commission on December 11, 2006)4.4
    
    
    Agreement Concerning the Limitations on Post-IPO Sale of Shares, dated
June 20, 2006, among certain holders of ordinary shares (incorporated by
reference to Exhibit 4.7 from our F-1 registration statement (File No.
333-139258), as amended, initially filed with the Commission on December
11, 2006)4.5
    
    
    Second Shareholders Agreement, dated December 4, 2007, among Solarfun
Power Holding Co., Ltd. and the other parties therein (incorporated by
reference to Exhibit 4.8 from our F-1 registration statement (File No.
333-147627), as amended, initially filed with the Commission on November
27, 2007)4.6
    
    
    The First Amendment to Lock-up Agreement, dated 2007, among Solarfun Power
Holding Co., Ltd. and other parties therein (incorporated by reference to
Exhibit 4.9 from our F-1 registration statement (File No. 333-147627), as
amended, initially filed with the Commission on November 27, 2007)4.7
    
    
    Amendment to Lock-up Agreement, dated December 4, 2007, among Yonghua Lu,
Good Energies Investment (Jersey) Limited and other parties therein
(incorporated by reference to Exhibit 4.10 from our F-1 registration
statement (File No. 333-147627), as amended, initially filed with the
Commission on November 27, 2007)4.8
    
    
    2006 Share Incentive Plan (incorporated by reference to Exhibit 10.1 from
our F-1 registration statement (File No. 333-139258), as amended,
initially filed with the Commission on December 11, 2006)4.9
    
    
    2007 Equity Incentive Plan (incorporated by reference to Exhibit 99.2 from
our Form S-8 registration statement (File No. 333-147644), as amended,
initially filed with the Commission on November 27, 2007)




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ExhibitNumber
    
    Description of Document4.10
    
    
    Form of Employment Agreement between Solarfun Power Holdings Co., Ltd. and
a Senior Executive Officer of the Registrant (incorporated by reference to
Exhibit 10.2 from our F-1 registration statement (File No. 333-139258), as
amended, initially filed with the Commission on December 11, 2006)4.11
    
    
    Silicon Supply Agreement, dated June 2, 2006, and Amendments No. 1, No. 2
and No. 3 thereto, dated June 9, 2006, October 8, 2006 and November 17,
2006, respectively, between Jiangsu Linyang Solarfun Co., Ltd. and E-mei
(incorporated by reference to Exhibit 10.8 from our F-1 registration
statement (File No. 333-139258), as amended, initially filed with the
Commission on December 11, 2006)4.12
    
    
    Sales Agreement, dated June 10, 2006, between Jiangsu Linyang Solarfun
Co., Ltd. and Social Capital, S.L. (incorporated by reference to Exhibit
10.9 from our F-1 registration statement (File No. 333-139258), as
amended, initially filed with the Commission on December 11, 2006)4.13
    
    
    Sales Contract, dated November 19, 2006, between Jiangsu Linyang Solarfun
Co., Ltd. and Scatec AS (incorporated by reference to Exhibit 10.10 from
our F-1 registration statement (File No. 333-139258), as amended,
initially filed with the Commission on December 11, 2006)4.14
    
    
    Sales Contract, dated November 19, 2006, between Jiangsu Linyang Solarfun
Co., Ltd. and Scatec AS (incorporated by reference to Exhibit 10.11 from
our F-1 registration statement (File No. 333-139258), as amended,
initially filed with the Commission on December 11, 2006)4.15
    
    
    Agreement of Transfer of Land Use Rights, dated April 8, 2006, between
Jiangsu Linyang Solarfun Co., Ltd. and Qidong Huahong Electronics Co.,
Ltd. (incorporated by reference to Exhibit 10.12 from our F-1 registration
statement (File No. 333-139258), as amended, initially filed with the
Commission on December 11, 2006)4.16
    
    
    Summary of Share Transfer Agreements, dated May 27, 2006 and effective as
of June 2, 2006, between Linyang Solar Power Investment Holding Ltd. and
the shareholders of Jiangsu Linyang Solarfun Co., Ltd. (incorporated by
reference to Exhibit 10.13 from our F-1 registration statement (File No.
333-139258), as amended, initially filed with the Commission on December
11, 2006)4.17
    
    
    Share Transfer Agreement, dated June 9, 2006, among Linyang Solar Power
Investment Holding Ltd. and various other parties (incorporated by
reference to Exhibit 10.14 from our F-1 registration statement (File No.
333-139258), as amended, initially filed with the Commission on December
11, 2006)4.18
    
    
    Share Issue and Transfer Agreement, dated June 12, 2006, among Solarfun
Power Holdings Co., Ltd., Linyang Solar Power Investment Holding Ltd. and
various other parties (incorporated by reference to Exhibit 10.15 from our
F-1 registration statement (File No. 333-139258), as amended, initially
filed with the Commission on December 11, 2006)4.19
    
    
    Deed of Share Transfer, effective as of July 15, 2006, among Linyang Solar
Power Investment Holding Ltd. and various other parties (incorporated by
reference to Exhibit 10.16 from our F-1 registration statement (File No.
333-139258), as amended, initially filed with the Commission on December
11, 2006)




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ExhibitNumber
    
    Description of Document4.20
    
    
    Management Consulting Service Agreement, dated November 18, 2006, between
Jiangsu Linyang Solarfun Co., Ltd. and Hony Capital II, L.P. (incorporated
by reference to Exhibit 10.17 from our F-1 registration statement (File
No. 333-139258), as amended, initially filed with the Commission on
December 11, 2006)4.21
    
    
    Bid Invitation and Letter of Acceptance for Shanghai Chongming Qianwei
Village 960 KW Solar PV Power Generation Model Project, dated September
28, 2006 and November 9, 2006, respectively (incorporated by reference to
Exhibit 10.18 from our F-1 registration statement (File No. 333-139258),
as amended, initially filed with the Commission on December 11, 2006)4.22
    
    
    Letter of Acceptance for Qitian Group 74 KW On-Grid Application System
Project, dated September 12, 2006 (incorporated by reference to Exhibit
10.19 from our F-1 registration statement (File No. 333-139258), as
amended, initially filed with the Commission on December 11, 2006)4.23
    
    
    Contract between Jiangsu Linyang Solarfun Co., Ltd. and ISC Konstanz,
dated September 5, 2006 (incorporated by reference to Exhibit 10.20 from
our F-1 registration statement (File No. 333-139258), as amended,
initially filed with the Commission on December 11, 2006)4.24
    
    
    Share Transfer Agreement, dated July 31, 2007, among Nantong Linyang,
Lianyungang Suyuan Group Co., Ltd. and Jiangsu Linyang Solarfun Co., Ltd.
(incorporated by reference to Exhibit 10.31 from our F-1 registration
statement (File No. 333-147627), as amended, initially filed with the
Commission on November 27, 2007)4.25
    
    
    Contract of Purchase between Schüco International KG and Jiangsu Linyang
Solarfun Co., Ltd. (incorporated by reference to Exhibit 10.33 from our
F-1 registration statement (File No. 333-147627), as amended, initially
filed with the Commission on November 27, 2007)4.26
    
    
    Second and Restated Supply Agreement, dated May 13, 2008, between Solarfun
Hong Kong Power Ltd. and Hoku (Exhibit 4.39 from our 20-F annual report filed with
the Commission on June 27, 2008)4.27
    
    
    Investment Agreement, dated November 14, 2007, between Jiangsu Linyang
Solarfun Co., Ltd. and Management Committee of Qidong Economic Development
Zone, Jiangsu Province (incorporated by reference to Exhibit 10.35 from
our F-1 registration statement (File No. 333-147627), as amended,
initially filed with the Commission on November 27, 2007)4.28
    
    
    Contract, dated October 30, 2007, between Yangguang Solar and Ald Vacuum
Technologies GmbH (Exhibit 4.41 from our 20-F annual report filed with the
Commission on June 27, 2008)4.29
    
    
    State-owned Land Use Right Grant Contract, dated January 28, 2005, between
Lianyungang Municipal Administration of Land and Resources and Yangguang
Solar Technology Co., Ltd. (Exhibit 4.42 from our 20-F annual report filed
with the Commission on June 27, 2008)




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ExhibitNumber
    
    Description of Document4.30
    
    

Equity
Transfer Agreement, dated June 23, 2008, among Nantong Linyang
Electric Power Investment Co., Ltd., Jiangsu Qitian Group Co., Ltd.,
Jiangsu Guangyi Technology Co., Ltd. and Jiangsu Linyang Solarfun Co., Ltd. (Exhibit 4.43 from our
20-F/A amendment to annual report filed with the Commission on June 30,
2008)4.31
    *
    
    Equity Transfer Agreement, dated November 16, 2009, between Rongqiang Cui
and Jiangsu Linyang Solarfun Co., Ltd.4.32
    *
    
    Equity Transfer Agreement, dated November 16, 2009, between Guoyu Wang and
Jiangsu Linyang Solarfun Co., Ltd.4.33
    *
    
    Equipment Sales Agreement, dated April 30, 2010, between SMIC Energy
Technology (Shanghai) and Jiangsu Linyang Solarfun Co., Ltd.4.34
    *
    
    Lease Agreement, dated April 3, 2009, between Jiangsu Linyang Electronics Co., Ltd. and
Jiangsu Linyang Solarfun Co., Ltd.4.35
    *
    
    Lease Agreement, dated April 2010, between Qidong Huahong Electronics Co., Ltd. and
Jiangsu Linyang Solarfun Co., Ltd.4.36
    *
    
    Toll Manufacturing Agreement for the
Production of Solar Modules between Solarfun Power Hong Kong Limited and Q-cells International GmbH
dated December 30, 20088.1
    *
    
    Subsidiaries of Solarfun Power Holdings Co., Ltd.11.1
    
    
    Code of Business Conduct and Ethics of Solarfun Power Holdings Co.,
Ltd.(incorporated by reference to Exhibit 99.1 from our F-1 registration
statement (File No. 333-139258), as amended, initially filed with the
Commission on December 5, 2006)12.1
    *
    
    CEO Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 200212.2
    *
    
    CFO Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 200213.1
    *
    
    CEO and CFO Certification Pursuant to Section 906 of the Sarbanes-Oxley
Act of 200223.1
    *
    
    Consent of Independent Registered Public Accounting Firm
 Notes:*
    
    Filed with this Annual Report on Form 20-F
    
    Confidential treatment has been requested. Confidential information has been redacted and
separately filed with the SEC.




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SIGNATURE
  SOLARFUN POWER HOLDINGS CO., LTD./s/ Ping Peter XieName:
    Ping Peter XieTitle:
    President