The invention discloses a full-automatic magnetic element transformer assembly machine which comprises a control system, a frame, a feeding mechanism, a dispensing mechanism, an assembly mechanism, a grinding mechanism, a first test mechanism, a first test NG discharging mechanism, a correction mechanism, a pressure maintaining mechanism, a rotating disc positioning mechanism, a multi-channel test mechanism, a code spraying mechanism, a test result distinguishing mechanism and a disc discharging mechanism, wherein the feeding mechanism, the dispensing mechanism, the assembly mechanism, the grinding mechanism, the first test mechanism, the first test NG discharging mechanism, the correction mechanism, the pressure maintaining mechanism, the rotating disc positioning mechanism, the multi-channel test mechanism, the code spraying mechanism, the test result distinguishing mechanism and the disc discharging mechanism are fixedly mounted on the frame. The assembly machine can meet requirements of modern assembly line operation of current magnetic element transformer assembly, various movement functions can be simultaneously finished, labor and time can be saved, labor intensity is relieved, labor efficiency is improved, the assembly quality and the yield of products are improved, and obvious economic benefits are brought for users.