Abstract:With the Beijing city function orientation converted and high energy consumption industries exit , Beijing building energy efficiency as an important energy conservation work has entered a new stage , and the Beijing 12th five-year building energy conservation plan has been fully expanded in breadth and depth. Through taking in-depth researches on Beijing building energy conservation task completion during the 12th five-year period , authors construct energy conservation plan effect evaluation index system, assess the effect of the implementation of Beijing civil energy planning by fuzzy comprehensive evaluation method ,and systematically analyze existed problems during the process of plan implementation . Finally, the article provides some suggestions for the Beijing building energy conservation plan, and expects to provide a reference for making Beijing the 13th five-year building energy conservation plan.