With the new load (electric heating and electric vehicles) and distributed generation connected to the distribution network, it is one of the current key tasks of the power grid to evaluate the adaptability of the power grid to new loads and high-proportion distributed power access. A comprehensive evaluation method for the carrying capacity of distribution network with new load and high proportion distributed power is proposed in this paper. According to the characteristics of new load and distributed power supply, the index system for comprehensive evaluation is established. The multi-level fuzzy comprehensive evaluation algorithm is used based on variable weight theory to calculate index weights. Finally, the distribution network with the new load and high proportion distributed generation is comprehensively evaluated. Based on the calculation results of the evaluation indexes, the weakness of the typical regional network is analyzed.