Abstract: Firstly, the paper discusses the necessity of safe and stable operation of asynchronous motor, analyzes that the main faults of asynchronous motor in power plant are concentrated on the bearing and winding coil, and formulates different measures and management policies according to different fault conditions to improve the motor maintenance process, improve the normal maintenance level, and strengthen the daily inspection and monitoring of motor. Through these schemes, the operation reliability of the asynchronous motor is improved, the non-stop or load reduction operation of the unit caused by abnormal motor defects is reduced, which plays a role in improving the quality and efficiency, and improving the team management level.