Exhibit 12.2
 Certification by the Chief Financial Officer Pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002
  1.
    
    I have reviewed this Annual Report on Form 20-F of SINA Corporation;2.
    
    Based on my knowledge, this report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this report;3.
    
    Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as
of, and for, the period presented in this report;4.
    
    The registrants other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial
reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the
registrant and have:
 a.
    
    Designed such disclosure controls and procedures, or caused
such disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known to us by
others within those entities, particularly during the period in which this
report is being prepared;b.
    
    Designed such internal control over financial reporting, or
caused such internal control over financial reporting to be designed under
our supervision, to provide reasonable assurance regarding the reliability
of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting
principles;c.
    
    Evaluated the effectiveness of the registrants disclosure
controls and procedures and presented in this report our conclusions about
the effectiveness of the disclosure controls and procedures, as of the end
of the period covered by this report based on such evaluation; andd.
    
    Disclosed in this report any change in the registrants
internal control over financial reporting that occurred during the period
covered by the annual report that has materially affected, or is
reasonably likely to materially affect, the registrants internal control
over financial reporting; and




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5.
    
    The registrants other certifying officer and I have disclosed, based
on our most recent evaluation of internal control over financial reporting, to
the registrants auditors and the audit committee of the registrants board of
directors (or persons performing the equivalent functions):
 a.
    
    All significant deficiencies and material weaknesses in the
design or operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrants ability to record,
process, summarize and report financial information; andb.
    
    Any fraud, whether or not material, that involves management
or other employees who have a significant role in the registrants internal
control over financial reporting.
  /s/ Herman YuName:
    
    Herman YuTitle:
    
    Chief Financial Officer
 2