Aiming at the defects of not strong adaptability and not high precision of the traditional PID controller in the control of variable pitch control, puts forward the variable pitch control method based on fuzzy control and PID control combination. Through the analysis of the principle and control requirements of the wind turbine blade, establishes the mathematical model and simulation model of wind turbine generator. Simulates and analyzes the wind turbine generator under the random wind. The results show that the proposed method improves the precision and response time of the variable pitch control and has a good static and dynamic performance.