Based on the structure and control theory of the spin missile actuator and considering the characteristic of the correction fuze,a electromechanical actuator is designed.A control method of the electromechanical actuator is discussed by the actuator work theory researched.Simulation results indicate that the designed electromechanical actuator,which is driven by a brushless DC motor and is forced by the alternate loading,can ensure the accuracy of phase compensation and rotation synchronization.