Abstract:The smart distribution network can improve the power supply quality of distribution system effectively, realize the optimal operation of distribution power grid-connection and efficient operation of distribution equipment, and complete the effective interaction with users.Wireless Sensor Network (WSN) has the advantages of low construction cost and fast self-organizing. It has a broad application prospect in smart distribution network communication. By summarizing the characteristics of smart distribution terminals in distribution network, the network structure of WSN and its application in smart distribution network are analyzed, and the design principles of smart distribution network WSN are given in this paper. According to this principle, the WSN layered architecture of smart distribution network is designed, including terminal acquisition network, convergence network and information access network.Intelligent distribution network communication system is usually composed of many kinds of communication mode, this paper presents a design scheme of combined with other means of communication network. The scheme by building terminal layer, access layer, business layer and the backbone of distribution master station layer, can effectively extend the intelligent power distribution network communication range and improve the data integrity of the distribution network.