Abstract:Improving energy efficiency is an effective way to realize the modern economic growth and solve the problem of environment pollution. This paper selects Super-SBM model based on variable returns to scale, with undesirable outputs in the production function, calculates total factor energy efficiency of Bejing in 1995-2011, and analyze the influencing factors, results show that: the overall situation of energy efficiency in Beijing is good, the fluctuations is small, it has been showing a high level; industry structure, openness, technological progress has significantly positively correlated with energy efficiency,wheareas energy consumption structure,government influence is negatively associated with energy efficiency. Therefore, reducing the proportion of coal in energy consumption, reducing government intervention in the market is benefit to improve the total factor energy efficiency and reduce the pollution of environment.