The invention provides a user wind and photovoltaic complementary power generation system suitable for a sea island micro-grid power supply mode. According to the user wind and photovoltaic complementary power generation system suitable for the sea island micro-grid power supply mode, a remote communication interface is arranged between the system and a sea island micro-grid control center, information interaction between the system and the sea island micro-grid control center can be achieved, natural resources, such as wind and light, of a sea island are used to the maximum degree, the system can also be used as an effective adjustment method to take part in operation control of a sea island micro-grid, and then optimized, economical and reliable operation of the whole sea island micro-grid is achieved. In addition, the system can adopt different communication methods according to the distance between the system and the sea island micro-grid control center, and then communication reliability of the sea island micro-grid and overall control effect can be optimized. According to the user wind and photovoltaic complementary power generation system suitable for the sea island micro-grid power supply mode, the special climate and natural environmental conditions which are different from a mainland of the sea land are fully considered, operation is simple and reliable, no environmental pollution is generated, and economic cost is low. The user wind and photovoltaic complementary power generation system suitable for the sea island micro-grid power supply mode is a quite ideal sea island micro-grid power supply supplement mode.