This research proposes a new strategy to address the theoretical bottlenecks of the permanent magnet synchronous motor (PMSM) control system. Traditional systems suffer from stator current and electromagnetic torque ripple issues. Hysteresis loop controllers can cause torque fluctuations. PI controllers lead to speed overshoot. The existing systems have relatively weak anti-interference capabilities. The new scheme adopts the super-twisting sliding mode active disturbance rejection control (STSM-ADRC) technology. The super-twisting sliding mode algorithm is applied in the torque loop. The active disturbance rejection control (ADRC) method is introduced in the speed loop. Simulation experiments verify the effectiveness of this strategy. The regulation time of the system’s step response is shortened. The speed recovery time after load changes is reduced. The peak value of torque ripple is significantly decreased. The dynamic response characteristics are significantly improved. The anti-interference capability of the system is greatly enhanced.