Abstract: In order to improve the permanent magnet synchronous motor (PMSM) drive system as well as the traditional proportional-integral-derivative (PID) control method, there are problems such as slow speed and torque dynamic response of the motor, weak system immunity to interference, and large jitter, a passive-based control (PBC)-cascade spiral sliding-mode control (CSSMC) strategy based on the split source matrix converter (SSMC)-PMSM drive system is proposed. The voltage transfer ratio (VTR) of the conventional matrix converter is only up to 0.866, in order to improve the VTR, this paper adopts the split-source network boost structure to replace the tributary link components in the middle of the two-stage matrix converter, thus obtaining the SSMC. In the vector control of the PMSM, the speed ring and current ring are controlled by the CSSMC and PBC, respectively, instead of the PID control. The SSMC-PMSM control system is designed and the stability of the system is demonstrated. The results of simulation and experiment show that the SSMC-PMSM drive system based on this control strategy can make the PMSM operate stably at the rated speed, with the features of small electromagnetic torque pulsation, strong anti-interference ability and good dynamic response.