Abstract:The hydraulic transmission and control technology applied in wind power generation equipment were mainly introduced.The hydraulic drive system of wind power generation equipment was designed with calculation.Using AMESim on wind power equipment of hydraulic system,dynamic simulation and modeling were carried out.The results show that the hydraulic power generation equipment is feasible in principle,motor speed of stable output can be achieved with different wind speed entered,thus it is conducive to improve stability of generator voltage.The system of oil tank,motor,and generator and the control device installation is in ground,which has reduced bear of weight of tower frame,as well as reduced maintenance and manufacturing costs.