Abstract: The topology structure of the distribution network is the basis for the intelligent application of the station area. The accuracy and real-time nature of the topology structure play an important role in the power grid management and operation and maintenance personnel to grasp the operation status of the station area in time, to achieve rapid and accurate fault location and line loss management. To meet the construction of fast, accurate and efficient topological relationship automatic identification intelligent application system. Experts and scholars have carried out a lot of research on the household-to-household relationship and topology identification method, topology recognition module, topology recognition system, and topology recognition applications, etc. The technical problems that power grid companies need to solve urgently, relying on traditional manual inspection methods cannot meet the needs of smart grids.