Abstract: For the realization of each regional autonomous system within single-phase/three-phase multi-microgrids（ TP/SP MMGs）reconnected to the distribution network steadily, fleetly and orderly, a connected sequential path search algorithm applied to TP/SP MMGs which considers the time of synchronism check and stability is proposed. Based on the TP/SP MMGs graph model, the connected sequential path search problem can be transformed into a minimum spanning tree problem, and the improved Prim search algorithm is used to search the minimum tree. After the success of reconnection to the distribution network, the particle swarm optimization algorithm based on mixed integer programming is executed to centrally recover the removed minor loads, confined new energy output and electric quantity of energy storage battery. Finally, the proposed algorithm is verified by the platform of multimicrogrids with single-phase/three-phase architecture based on DIg SILENT, which proves the validity and practicability of the proposed algorithm.