Exhibit 15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-36246, No. 333-47720, No. 333-107359, No.333-129460 and No. 333-144890) and Form F-3 (No. 333-163990) of SINA Corporation of our report dated May 31, 2011 relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 20-F.

/s/ PricewaterhouseCoopers Zhong Tian CPAs Limited Company

Beijing, the People’s Republic of China

May 31, 2011