A new type of miniaturization and high power intelligent servo driver based on ARM is designed in order to solve the problems in miniaturization and intellectualization of high-power current servo driver. The circuit design of control module using ARM microprocessor as core and drive module using a highly integrated three-phase pulse width modulation（ PWM） motor driver as core circuit design are completed. The adaptive fuzzy proportionintegration-differentiation（ PID） control algorithm and control strategy is studied

and the fast response and precise control of brushless DC motor rotating speed is completed. The real-time control of brushless DC motor（ BLDCM）is realized by using CAN bus control method

and the motor rotating angle and speed are accurately obtained through the setting of magnetic sensor. The experimental results show that the servo drive system has characteristics of large power

high precision

fast response

good dynamic and static stability. The system has good control effect on brushless DC motor

and has high popularization value.