An evaluation method of science popularization level of new energy based on AHP (Analytic Hierarchy Process) and TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution) is proposed in this paper. 6 first-level evaluation indexes including science popularization personnel, science popularization space, science popularization venues, science popularization media, science popularization activities and science popularization influence are selected to construct an evaluation index system for science popularization level which includes 22 second-level indexes. AHP is used to confirm the weight of each evaluation index, TOPSIS is applied for assessment and calculation, and the evaluation results are given in accordance with relative closeness. To verify effectiveness of this method, the operation data of 5 new energy science popularization bases are collected, and the sorting result of science popularization level of new energy is provided.