The invention discloses a double-stator double-salient-pole motor fault tolerant drive system and a control method, and belongs to the technical field of double-salient-pole motor control. A double-stator double-salient-pole motor is a six-phase double-salient-pole motor with a coaxial two-segment interlaced rotor. Six-bridge-arm twelve switching tubes are employed as a power converter in the prior art. According to the invention, a bridge arm is provided with additional change-over switches (K1, K2, K3, K4). When an open circuit fault happens to one bridge arm switching tube, the change-over switch of the fault bridge arm is controlled, and a fault phase motor winding is enabled to be connected with a normal converter bridge arm corresponding to the other motor segment. The converter topology after fault tolerance is reconfigured, and a strategy is switched to a novel fault tolerance control strategy, thereby achieving a five-phase bridge arm fault tolerant drive double-stator double-salient-pole motor. The system can be switched to the fault tolerance operation state quickly and smoothly after a fault is detected, maintains the original drive performance of the motor, maintains the stable torque, and achieves the fault tolerance control after the fault of the double-stator double-salient-pole motor.