The switched reluctance drive system has simple structure, wide speed variation range, high cost performance and some other special property, and its greater torque ripple also results in more serious vibration and noise than other speed regulating systems, which restricts its application in some field. The direct torque control technology is used in switched reluctance drive system to control the torque of the motor. The simulation results prove that the technology does well in controlling the flux vector amplitude in hysteresis band and effectively controls the motor’s torque ripple to inhibit its vibration and noise.