Because of the problems of permanent magnet synchronous motor model predictive torque control with a large amount of calculation,the weight factor is difficult to determine and the torque ripple is large,an optimal model predictive dual torque control method was proposed.The cost function of flux linkage and torque were replaced with dual torque of active torque and reactive torque by this method,thereby simplifying the system structure.A compensation function with prediction-correction function was also constructed,and the compensation function was corrected to reduce the impact of the delay problem.On this basis,the sector judgment link was added to reduce the number of candidate voltages from 8 to 3,which greatly reduced the amount of calculation.The simulation results show that the optimized model predictive dual torque control method has lower torque ripple,less calculation,and faster dynamic response.