The paper analyzes the environmental efficiency and the influencing factors of 13 cities in the Beijing-Tianjin-Hebei region based on panel data of 2004—2013 applying the Super-DEA method and Tobit model .The results show that ,the environmental efficiency of Beijing is the biggest followed by Tian-jin.In Hebei province ,environmental efficiency value of most cities are less than 1 in addition to Qin-huangdao and Tangshan .Hebei Province,in addition to Shijiazhuang ,Tangshan and Qinhuangdao ,there is a surplus of labor in the rest of the city .In Chengde City ,there is a redundant for the fixed capital in-vestment ,the quality and yield of investment should pay close attention to .There is also a redundant for industrial wastewater emissions , industrial sulfur dioxide emissions and industrial smoke ( powder ) dust emissions in most of the Hebei cities .Technological progress contributed largely to the total factor produc-tivity of Beijing and Tianjin , and the contribution to the total factor productivity of Hebei province was small.Overall, the environmental efficiency level of Beijing-Tianjin-Hebei region showed a downward trend,technology factor is the biggest constraints .Some suggestions are given finally .%基于2004—2013年京津冀地区13个地级以上城市面板数据，采用超效率DEA模型和Tobit回归分析方法，对城市环境效率及影响因素进行分析。结果表明：北京市环境效率最高，天津市其次，河北省除秦皇岛和唐山的环境效率值大于1，其他城市均小于1；河北省除石家庄、唐山和秦皇岛外，其余城市均存在劳动力过剩现象，承德市存在固定资产投资冗余，工业废水排放量、工业二氧化硫排放量和工业烟（粉）尘排放量普遍存在投入冗余；技术进步对北京和天津的全要素生产率贡献最大，对河北省的全要素生产率贡献较小，且河北省技术进步的贡献小于规模效率；技术因素是京津冀地区环境效率呈下降趋势的主要原因。最后给出对策建议。
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