This paper briefly introduces OTA testing and its purpose,analyzes the importance of OTA testing and the model states of OTA testing.The specific requirements for OTA testing of CE certification are introduced in detail,such as what frequency bands are required for testing,which model states are only required for testing,what size is required to meet the test require-ments,and how to calculate the final result through the calculation formula conversion,and what is the determination requirement of the limit.A practical test case is used to illustrate how to conduct OTA testing for CE certification and complete its related test requirements.This sec-tion describes the impact of adding OTA testing to CE certification on other tests,and provides a simple analysis and summary.