The adjacent two-phases open circuit fault of five-phase permanent magnet synchronous motor (PMSM) will lead to unstable operation of the drive system, in view of this fault situation, a fault-tolerant control strategy based on space vector pulse width modulation (SVPWM) technology is proposed. Firstly, the mathematical model of permanent magnet synchronous motor (PMSM) is constructed;then,in order to realize the smooth conversion of electromechanical energy, the reduced order transformation matrix is reconstructed,and the residual compatible fault current expression is obtained; then, the SVPWM technology is used to calculate the space voltage vector under fault, establish six sectors, synthesize the target vector, calculate the action time of the corresponding basic synthetic voltage vector, and give the selection order of the space voltage vector of the corresponding sector; Finally, matlab/simulink simulation shows the simulation results are consistent with theoretical calculation, which effectively verifies the correctness of the proposed SVPWM fault-tolerant control strategy. By using the fault-tolerant control strategy, the operation performance of five phase permanent magnet synchronous motor under fault state is significantly improved, and the motor achieves stable operation. The proposed control strategy is compared with the traditional current hysteresis tracking PWM control, which proves the superiority of the proposed strategy.