In order to simplify the simulation process of wind turbine master control system, the simulation model of control system was established with Simulink/Stateflow technology based on the theoretical analysis of control strategy of the operating state of the wind turbine. The model can make a judgment according to the input data, output control signals into Simulink and achieve the master control system operating state transformation among the different states. Simulation shows that with given input data, the model output control signals consistent with those of wind turbine control strategy, and verifies the effectiveness and reasonableness of the simulation method.