Abstract: To enhance the operational economy,power reliability,and renewable energy consumption capacity of a park microgrid cluster,a dynamic network optimization method for the operation of the industrial park microgrid cluster based on dynamic reconfiguration is proposed in this paper. A linearized microgrid cluster network model is constructed with the objectives of minimizing operating cost,load loss cost,and curtailed solar power cost,so that the linear programming method can be used for efficient solution Secondly,considering the possibility of multiple microgrids experiencing power excess or shortage simultaneously,a method based on interconnection constraints of microgrids is proposed to determine the optimal network configuration solution. Finally, a case study is conducted on a park microgrid cluster system consisting of three microgrids to validate the proposed method. The results indicate that the proposed method can achieve dynamic interconnection among microgrids,improve the operational economy of the microgrid cluster, reduce load losses, enhance power reliability, and increase the local consumption capacity of renewable energy.