The invention relates to an active SAR (synthetic aperture radar) antenna working state test system and test method. The active SAR antenna working state test system comprises a current acquisition device and a recording, analysis and display device. The current acquisition device obtains the current information of the power supply bus-bar of an active SAR antenna and sends the current information to the recording, analysis and display device; the recording, analysis and display device receives the current information, performs AD sampling and recording and thereafter carries out analysis processing and displays processing results; and therefore, the work condition test of the active SAR antenna can be completed. With the active SAR antenna working state test system and test method of the invention adopted, reliable antenna work history test, antenna work electricity utilization surge peak test and antenna repeated frequency characteristic test results can be obtained, and therefore, the working state of the active SAR antenna can be quickly and conveniently grasped.