Abstract: Aiming at the problems existing in the traditional model predictive control (MPC) method and modulation model predictive control (M²PC) method, we put forward an improved M²PC method and apply it to the matrix converter (MC)-permanent magnet synchronous motor (PMSM) system control. Firstly, the topology of MC-PMSM is given, and the existing problems of MC-PMSM control system based on traditional MPC and M²PC methods are analyzed. Then, a solution based on the improved M²PC method is proposed, which can not only fix the switching frequency, but also reduce the amount of calculation and improve the waveform quality. Finally, the MC-PMSM system is simulated on the RTDS platform using the improved M²PC method, and compared with the traditional MPC and M²PC methods. The results show that the control performance of the proposed improved M²PC method is superior to the traditional MPC and M²PC methods.