After the distributed energy access to the distribution network, the traditional distribution network disconnection and positioning method is facing new challenges. The distribution network model with distributed energy is established. And it is found that distributed nodes with disconnected branch have different positive and negative power (or zero power) characteristics, while the non-disconnection branch shares single power direction. In this paper, the power distribution method based on power direction is proposed. The power direction principle of the disconnection of the distribution network is introduced, and the specific process is designed based on MAS technology. The results of the example analysis show the effectiveness of the method. This work is supported by Science and Technology Protect of State Grid Shandong Electric Power Company (No. 520605170014).