Abstract:Under the background of " big planning" system by State Grid Corporation of China,and based on the urban distribution network planning of Huangshan city,the problems existing in distribution network planning management are analyzed, and the ideas of active distribution network planning management is proposed for the interconnection of municipal /power grid and serving the development of urban areas. Based on the precise " gridding" planning method of distribution network,the active planning management mechanism of three - dimension system with target,organization and strategy is established,which can carry out distribution network planning with high efficiency and high quality. Finally,the innovation,accuracy and effectiveness of the proposed planning management system is verified by the results of implementation.