Abstract: The wide access and uncertainty of new sources and loads increase the risk of safe operation of the distribution network.The increasingly frequent extreme disasters bring huge losses to the distribution network, and it is urgent to improve the bearing capacity and resilience of the distribution network. Configuring photovoltaic and energy storage as a whole system can effectively reduce the uncertainty caused by PV access. Most of the existing PV-storage system planning considers the load demand in a single feeder for configuration, and does not optimize the allocation of resources in a larger range. Therefore, an optimal configuration method of PV-storage system in power mesh considering economy and resilience balance is proposed. Firstly, the output model of PV-storage system is established, and the regulation mechanism of PV-storage system under normal and extreme disaster scenarios is analyzed. Secondly, taking the economy and toughness Nash equilibrium optimization as the overall goal, considering the constraints of different power supply units in the grid on the difference of the configuration requirements of the PV-storage system, a bi-level optimal planning model of the optical storage system in the power mesh is established. Finally, the optimal configuration of the PVstorage system for the actual distribution network is optimized. The results show that the proposed method can fully consider the configuration requirements of different power supply units in the grid and maximize the resilience of the distribution network within the limited investment.