Considering mandatory synchronization，torque coupling and parameter drifting among two brushless DC motors with synchronous shafts，a novel two- motor torque balance control scheme based on fuzzy control is presented. A double loop-closed control of speed control and torque balance is realized simultaneously with meeting the speed control and power balance control system，in which torque servo master-slave control method is used. In speed control loop, the result of comparing given speed and the feedback speed of brushless DC motor gets access to the speed regulator to obtain the unified torque command. The other result of comparing the given speed and the torque feedback of brushless DC motors comes into the torque regulator to constitute two torque closed loops to rapidly follow the unified torque command. In Matlab/Simulink environment，the model of two motors torque balance control is built and a simulation of the working state of motors is conducted in normal and abnormal electrical parameters. The simulation result shows that the proposed scheme is valid.