In order to meet the special operating conditions of the airport"s electric special vehicles at ultra-low speed, Taking the built-in permanent magnet synchronous motor as the research object, the vector control strategy of the traditional torque as the control target is improved, a double closed-loop fuzzy control strategy based on the constant-speed control combined voltage feed-forward compensation is proposed, the double closed-loop vector fuzzy simulation model is built by Simulink, and the prototype platform is tested. The simulation results and experimental data show that this method can effectively improve the speed response speed and stability, reduce the peak current and improve the torque output capacity and stability under the condition of ultra-low speed operation.