Abstract:In March 2017, 28 cities of Beijing-Tianjin-Hebei air pollution transmission channels were established in China. It is necessary to scientifically evaluate the low-carbon government performance and put forward policy recommendations for its low-carbon development. Based on the basic principle of balanced scorecard method and the applicable conditions of objective weighting method, this paper constructs a low carbon government performance evaluation index system from the four dimensions of customer, finance, internal process and learning growth which is scientific, comprehensive, comparable, available. The constructed index system is applied to Beijing-Tianjin-Hebei air pollution transmission channel cities and two-stage principal component analysis is used to get the performance level of low-carbon government. Finally , some suggestions are put forward to improve the performance of low - carbon government.