A generated power control system and control method for an intelligent micro-grid with medium energy storage. The control system mainly comprises a wind-solar hybrid power generation system, a solar thermal power generation set with medium energy storage, and a micro-grid power control system. The control method comprises: a micro-grid centralized control center receives in real time a power instruction transmitted from a micro-grid dispatching automation system, and collects in real time the generated power of the wind-solar hybrid power generation system; an energy management system calculates an optimal power distribution scheme of a micro-grid. According to the power distribution scheme, stable output of the generated power of the micro-grid is implemented by performing coordinated control on heat storage and heat release rates of a heat storage system, and the generated power of the solar thermal power generation set. By means of the control method, the technical defects, such as uncontrollability, discontinuity, and large fluctuation of wind energy and solar generated power that are caused by the change in an external environment, can be overcome, the generated power of the micro-grid is stabilized, electric energy of a new energy can be consumed to the greatest extent, and the problems of "wind curtailment" and "light curtailment" in the new energy can be effectively solved.