A wind turbine reliability modeling method considering impacts of an operating environment comprises the following steps: (1) dividing the operating environment into three parts: a power electronic system, a mechanical system and a control system; (2) establishing a reliability model of the power electronic system by adopting an FIDES Guide power component reliability analysis method; (3) analyzing the relationship between the wind speed and the failure rate of the mechanical system by using a Copula function, and establishing a reliability model of the mechanical system; and (4) establishing a reliability model of the control system by using an average failure rate of the control system. According to the method disclosed by the invention, the failure rate of a wind turbine set in different environments can be reflected more accurately, and the failure rate of each sub-system of the wind turbine set can be evaluated more accurately.