This paper analyses the effect of ocean wave loading on the wind turbine installation, and proposes a kinematic model for the wind turbine under the ocean wave loading, with which some simulations are carried out. A scheme of wind turbine soft landing is put forward according to the installation requirements and simulation results. The wind turbine movement states of the various stages are analyzed. Hydraulic accumulators are used as buffer storage devices, so the hydraulic cylinders can quickly follow the movement of the turbine interface frame, with only one impact during the landing. A control mode is proposed to combine the hydraulic proportional control technology with the acceleration feedback, which not only can accomplish a buffer action and make the buffer acceleration controllable in a closed loop, but also can be switched to the mode of synchronous movement to adjust the wind turbine gesture. Comparing with a completely passive buffer, which is not controllable, and difficult to adjust the gesture of the wind turbine and to accommodate different modes, it has greatly enhanced the flexibility of installation and achieves a soft landing for the wind turbine installation. At the same time it also has laid a foundation for further research of its control algorithm and reliability.