The invention discloses a floating type photovoltaic platform and an offshore wind turbine generator. The floating type photovoltaic platform comprises a truss girder structure, the truss girder structure comprises a truss girder body, a first connecting beam and a second connecting beam, the truss girder body is of a square frame structure, and the space defined by the square frame structure is divided into a first mounting area, a second mounting area, a third mounting area and a fourth mounting area by the first connecting beam and the second connecting beam; the truss platform is arranged in the first mounting area, the second mounting area, the third mounting area and the fourth mounting area; a floating stand column; provided is a stabilization water tank. The truss platform can be supported through the truss girder structure, the photovoltaic panel is installed through the truss platform, modular manufacturing and splicing are conveniently achieved, the manufacturing difficulty is reduced, the construction time is shortened, compared with an existing box type floating platform or a panel type floating platform, the truss structure is adopted, the weight is reduced, and the lightweight structural design is achieved.