The permanent magnet synchronous motor (PMSM) for electric vehicle drive has the characteristics of high power density, light weight, small size and compact internal mechanism. Therefore, the internal heat dissipation pressure of the motor is high, if the heat is not dispersed effectively in time, it will cause a serious temperature rise problem and limit the power of the motor. Aiming at the serious heat problem at the PMSM winding end, the cooling effect and fluid movement are analyzed under different nozzles, different flow rates and different spray positions by using spray cooling method and discretizing the cooling medium. After selecting a reasonable spray form and a spray flow rate, the temperature fields of the winding end of the spray cooling and water cooling motor are compared. The analysis results prove the effectiveness of spray cooling and provide a reference for the future research on spray cooling of electric vehicle drive motor.