At present, there are few researches on the hydrodynamic performance of offshore wind turbine and aquaculture combined structures, and the mechanism of environmental load affecting the structure is complicated. In order to study the effects of different environmental loads on the dynamic response of the wind-fishery farming platform, a floating wind-fishery farming platform equipped with flexible farming system with different mesh density is taken as the research object. and the basic hydrodynamic performance is studied based on the potential flow theory; By using Orcaflex software, the floating wind-fishery farming platform coupling numerical model is established, and the time-domain coupling dynamic analysis is carried out, so as to get the results of the dynamics response. The results show that the natural period of heave, pitch and roll of the floating wind-fishery farming platform can avoid the common wave period. The farming system has great influence on the platform heave, pitch and mooring line tension, but little influence on the platform heave. Compared with wind speed and wave period, current speed has a more significant effect on platform dynamic response.