In order to improve the power supply recovery effect and better cope with the situation of the deepening of the information-physical coupling degree of active distribution network, an island partitioning algorithm considering the multi-flow fusion of information flow, energy flow, service flow and the function of intelligent open point (SOP) is proposed. First, in order to ensure reliable load recovery, the strategy deeply studies the information-physical coupling and models it, ranking the importance of node information, and discussing its impact on load recovery. Secondly, the steady-state model of SOP is constructed, and the working principle and control mode of SOP are analyzed. Then, in order to restore the load to a greater degree and more flexibly, considering the role of SOP, the active distribution network island division model considering the PV time variability and load operation characteristics is established. Finally, a simulation example is given to verify the effectiveness of the proposed strategy.