Offshore wind turbines are mainly installed on the offshore floating Foundation, the stability of floating foundation greatly affects the operation effect of wind turbines and the safe operation of power generation equipment.This paper combines the characteristics of large ships and third-generation Spar platforms, conceptually designed a type II Spar-type offshore wind turbine floating foundation. Based on the theory of potential flow and the linear micro-amplitude wave theory of wave force in

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... ry of wave force in large scale component, the dynamic response of the floating wind power generation system under the coupling of wind and waves is analyzed by using the finite element software to analyze and simulate the wave excitation force on the floating Foundation.The results show that the floating foundation has good stability under the coupling of wind and waves.