Science popularization level of new energy technology contributes to measuring science popularization effect of new energy, discovering problems in science popularization of new energy and promoting popularization effect of new energy. A comprehensive method to evaluation science popularization level of new energy based on AHP (analytic hierarchy process) and TOPSIS is proposed in this paper. 6 first-level evaluation indexes including science popularization personnel, science popularization field, science popularization fund, science popularization media, science popularization activity 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 operating data of 5 China new energy science popularization bases are collected, and the sorting result of science popularization level of new energy is provided.