For the problem of large torque ripple of the traditional permanent magnet synchronous motor (PMSM) model to predict the torque ripple of the control system, an improved DSVM finite set model prediction current control (FCS-MPC) strategy of PMSM is proposed. The use of DSVM technology to increase the optional voltage vector effectively reduces the error between the reference voltage vector and the prediction voltage vector, thereby reducing current and torque ripple. To avoid enumeration the voltage vector and calculation online of duty cycle, this strategy optimizes the voltage vector table in two steps, and then directly finds the corresponding duty cycle table, so that the voltage vectors in the prediction process are reduced from 38 to 14. At the same time, the duty cycle table is used to fix the switching frequency by linear combination of fixed voltage vectors. The new control strategy reduces current and torque ripple and reduces the computational burden added by the DSVM method. The Simulink simulation is verified, and the simulation results verify the effectiveness of the proposed control strategy.