Abstract: Through the study on economic dispatching of renewable energy distribution generation system, the operating costs and environmental pollution could be minimized on the premise of meeting the demands, and eventually the renewable energy would be more efficiently used. The mathematical models of renewable energy distribution generation system were analyzed in detail which including solar power, wind power, fuel cell, diesel and battery were analyzed. Based on the models, the objective functions and energy dispatching strategies of the system were presented. The objective functions were calculated with the priority list method. The simulation results showed the correctness and validity of the models and algorithms. The method can provide a reference for the optimal dispatch and economic combination of generation unit in renewable energy distribution generation systems.