exh_151.htm

We consent to the incorporation by reference in Registration Statement Nos. 333-12670, 333-12672, 333-98425, 333-101452, 333-107975, 333-116596, 333-132251, 333-153436, and 333-162489 on Form S-8 of our reports dated April 23, 2015, relating to the consolidated financial statements of O2Micro International Limited and subsidiaries (the “Company”) and the effectiveness of the Company’s internal control over financial reporting, appearing in this Annual Report on Form 20-F of the Company for the year ended December 31, 2014.