Abstract: With the increasing penetration rate of distributed energy, the large-scale deployment of microgrid clusters has become an important pathway to enhance new energy consumption capacity and power supply reliability. Aiming at the challenges of coordinated operation control and operation mode switching of multiple microgrids, an intelligent control scheme based on a three-port energy router is proposed. This scheme achieves coordinated operation of multiple microgrids through hierarchical control, ensures stable off-grid operation through off-grid energy balance control, and completes smooth switching between grid-connected and off-grid modes with the help of the energy router. Engineering applications show that this scheme can effectively improve power supply reliability and new energy consumption capacity, realize the friendly integration of microgrid clusters, and provide a technical reference for the construction of microgrid clusters.