In view of the disadvantages of large armature current,low efficiency and low control accuracy in traditional current control strategies of controllable leakage flux reverse salient pole permanent magnet synchronous motor,an optimal current control strategy considering the parameter changes during the operation of the motor was proposed. Firstly,the characteristics of inverse salient pole and controllable magnetic flux leakage of the new motor are analyzed, and the inverse salient pole ratio and magnetic flux leakage coefficient are introduced considering the changes of inductance and flux of the motor,and the structure model of the new motor is constructed.Secondly,the traditional maximum torque current ratio control is reconstructed to obtain the optimal current combination,which further improves the control accuracy of the motor and reduces the copper consumption of the motor.Finally,through the simulation and experiment of the motor,the results show that compared with the traditional control strategy,the proposed method reduces the copper consumption by about 5%and the armature current by 0.6 A,which improves the efficiency of the motor.