To satisfy the requirements for isolating disturbances and stabilizing optical axis of a stabilized platform, the performance of the system control is improved by optimizing the control structure and control algorithms.On the basis of the speed closed-loop control, the current inner loop is loaded to improve the torque control accuracy of the DC torque motor.The isolation and the stability margin of the system is improved by cascading the lead and lag correction device.The fuzzy controller tuning PID controller parameters is used to improve the system dynamic performance.Simulink simulation shows that: The system isolating disturbance under constant torque value, periodic disturbance torque and periodic disturbance angular rate has the characteristics of fast response, good isolation effect and high stability.