In the construction process of new power system,the distribution network is an important link for the consumption of new energy and the interaction between source and load.The requirements for data collection,monitoring,and equipment status detection are increasing.Distribution network mirroring technology combines traditional geographic information system,distribution network operation data,and three-dimensional model of distribution equipment to achieve mirroring of spatial and operational data of distribution network.On the basis of three-dimensional image,real-time on-site status is overlaid through drone patrol and route video.Mirroring technology is applied to achieve the integration of physical topology,spatial location,and operational data of distribution lines,thus forming a new mode of distribution network monitoring and operational maintenance.