Aiming at the problem of commutation torque ripple in brushless DC motor (BLDCM), a method to inhibit torque ripple of BLDCM based on double H-bridge converter was proposed. Through the compensating or reducing current generated by the double Hbridge converter circuit, the fluctuation of the noncommutation phase current could be reduced so as to inhibit the torque ripple of the BLDCM. The simulation model of BLDCM was constructed in MATLAB/Simulink and was conducted comparative experiment, compared with the traditional PID control method, the new method’s current ripple of noncommutation phase decreased about 70% at high speed and 40% at low speed, respectively. Meanwhile, the balanced torque ripple decreased about 80%. The results showed that the new method has some practical value.