Abstract: For the problem of wind turbine blade ice covering in the northern alpine regions such as Inner Mongolia, the unmanned deicing control system for wind turbine blades is proposed for the first time in China. Based on the STM32F103 foundation, the UAV deicing control system is designed, and the de-icing control system design scheme is given from the functional requirements of deicer injection control, real-time monitoring of sensor collection data, remote operation and device safety control, etc. The software and hardware system optimization design is carried out for the designed de-icing control PWM drive control part, using discrete PID control algorithm and negative feedback closed-loop control The system improves flow accuracy and de-icing efficiency. The integration of the deicing control device and system debugging are completed, the experimental platform is built, the eight-rotor UAV carrier is selected and parameter setting and flight testing are carried out, and the integration of the whole de-icing UAV equipment is finally completed to achieve accurate local de-icing.