In view of the lack of quantitative evaluation method for energy efficiency of the existing AC and DC distribution network, the complexity of the AC and DC distribution network and the wide distribution of energy efficiency impact factors lead to the lack of comprehensive and objective energy efficiency evaluation. This paper establishes a set of energy efficiency evaluation index system suitable for AC-DC hybrid distribution network from three aspects of source load according to relevant national standards and references. On this basis, the combined weighting method based on G1 anti entropy weight is established to determine the comprehensive evaluation model of index comprehensive weight from subjective and objective perspectives, and the approach ideal solution sorting method is used to comprehensively evaluate the energy efficiency level, fully reflecting the gap between various schemes. Finally, four simulation examples are used to verify the correctness of the index and the feasibility of the evaluation model, which has a certain reference value for the further scientific and reasonable planning, management and operation of the AC and DC distribution network.