In the electricity market environment, thinking about the influence of demand side response and energy storage system on microgrid, it jointly optimizes the configuration of the system through cooperative game mode. A microgrid operation strategy of implementing time-of-use price when demand side user appropriately transfers load is proposed, which is used to achieve maximum revenue and optimal reliability of microgrid. Firstly, this paper establishes the objective function and model of the users of the transferring load, the users of implementing load response under time-of-use price and the energy storage system. Second, the cooperative game method is used to optimize the allocation of three parties and an iterative algorithm is used to find joint optimization Nash equilibrium point of three parties (the optimal allocation scheme). On this basis, system joint optimization operation strategy is put forward. The model and algorithm are applied to a practical PV microgrid system in Gansu, verifying their validity.