Abstract:The main problems that puzzle distribution network planning include the difficulty of collecting and analyzing basic data, the lack of professional technical support in planning project management, and the complete dependence on manual management. Based on the engineering practice of "Basic Data Application Research Project of Distribution Network Planning" in Guizhou Power Grid Planning and Research Center, this paper analyzes and summarizes the practical experience of the project, discusses the realization of comprehensive and rapid integration of basic data of distribution network planning through multi-source data fusion, and puts forward the basis of distribution network planning. Data analysis and application routes, the research results of which play a greater role and significance in improving the management and technology of distribution network planning.