Abstract: In order to effectively suppress the power fluctuation of the wind-solar combined power generation system, a control strategy for the wind-solar combined power generation system with multi-type energy storage based on fuzzy control was proposed.The output of power storage system and energy storage system is adjusted based on the wind-solar power fluctuation trend, the state of energy storage system on charge and the state of power storage system on charge as the input of fuzzy controller, and the consistency of energy storage battery is fully considered to effectively guarantee the cycle life of energy storage battery. Finally, an example is given to verify, the result shows that the multi-type energy storage system based on fuzzy control can effectively suppress the power fluctuation of the wind-wind combined power generation system, give full play to the respective advantages of the hybrid battery energy storage system, prolong the service life and maximize the value.