The research method of 5G base station antenna OTA test research on the large-scale MIMO active antenna OTA test method of the 5G base station. In this paper, the necessity of an integrated OTA test for 5G base station antenna is analyzed. Different OTA test schemes such as far field, compact field, multi-probe near field and single probe near field are introduced. The advantages and disadvantages of each test scheme are tested through the actual test. The comparative analysis points out the problems faced by the current 5G base station antenna OTA test and proposes a solution.