Abstract: In recent years, with the continuous development of the new type power system and the smart grid, the modern power supply service command system has become increasingly perfect, and the active repair and judgment mechanism has developed rapidly. However, at present, the active repair mode of the distribution network still has problems such as insufficient perception ability and inaccurate event active judgment. How to efficiently promote the implementation of proactive repair work and improve the accuracy of research and judgment has become the key to enhancing the operation and command of power distribution networks.