Abstract: Distribution network planning is a transformation plan formulated after analyzing the current situation of distribution network and load. Due to the continuous expansion of the power grid scale and the increase of uncertain factors, the planning effect is poor and the accuracy is low. Therefore, a new digital model of intelligent distribution network planning is designed and simulated. Extract the multi-time scale load distribution vector, and obtain the status information of the equipment from being put into use to being out of operation in real time. On the basis of substation site selection and operation investment, analyze the distribution form of road network information, with the goal of reducing the cost of power grid transformation as much as possible, user segmentation is carried out, and an intelligent planning digital model is constructed. Simulation experiment results: The average terminal transmission rate of the digital model of intelligent planning of distribution network is higher, which indicates that the digital model of intelligent planning of distribution network designed this time is more comprehensive and accurate.