Abstract: In order to improve the efficiency of photovoltaic power generation, the design and research of energy storage collaborative optimization control method for high penetration distributed photovoltaic power generation grid connection are carried out. Based on the operating characteristics of a single diode, describe the current voltage relationship in photovoltaic power generation and establish a high penetration distributed photovoltaic power generation array model; design a multi-objective collaborative control function for grid connected energy storage with the goal of maximizing energy utilization efficiency and grid stability; based on the established objective function, the optimal configuration and control of energy storage capacity are carried out by analyzing historical data, predicting future loads, and renewable energy generation. The comparative experimental results demonstrate that the designed method can achieve collaborative control optimization of grid connected energy storage, and the controlled photovoltaic output can meet expectations.