Based on the current situation of the existing wind turbine hydraulic braking system,presents a new type of hydraulic braking system(flexible hydraulic braking system),establishes a new type of wind turbine hydraulic braking control system model which is simulated by the software of AMESim,and validates the reliability of the braking system theoretically,the factors affecting the dynamic characteristics of the braking system were analyzed,which provides the basis for the development of a new hydraulic braking controller.