QIHU Qihoo 360 Technology Co. Ltd. American Depositary Shares, Every 2 of Which Representing Three Class A Ordinary Shares

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 2012

Commission File Number: 001-35109

Qihoo 360 Technology Co. Ltd.

Block 1, Area D, Huitong Times Plaza
No.71 JianGuo Road, ChaoYang District
Beijing 100025
People’s Republic of China
(86-10) 5878-1000
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

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QIHOO 360 TECHNOLOGY CO. LTD.

Form 6-K

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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Exhibit Index

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