Based on the traditional PID control system, direct at motor starting problem like overshoot, dynamic stability slower and low accuracy, adopted PID control technology combining with the fuzzy control system named fuzzy adaptive PID control for three-phase asynchronous motor speed control system, and then carry on the system research and compare with the traditional PID control system. conduct of simulation at the time that motor from starting to steady state, the simulation results show that compared with the PID control system independent, the fuzzy adaptive PID control system of performance is better.