Manufacturing industry is a major energy consumer and a major source of environmental pollutants. Improving the green total factor efficiency of the manufacturing industry is of great significance in realizing the sustainable development of China’s manufacturing industry and the whole national economy. In this paper, a series of assessment indexes for energy efficiency are identified from the perspective of green building assessment, and data envelopment analysis (DEA) is proposed. The relative effectiveness of DMUs is evaluated by comparing the degree of their deviation from the DEA frontier surface. A basic C²R model is established according to the DEA idea, and relevant constraints are introduced to establish a BCC model for energy efficiency during the construction process. Energy efficiency analysis of office indoor environment energy consumption through the above model, the average energy efficiency of 36 green office indoor environments is 0.514 in 2018, and the average energy efficiency rises to 0.61 in 2023.In general, the energy efficiency of 36 green office indoor environments shows an upward trend during 2018-2023. At the same time, the comprehensive efficiency shows a fluctuating change of decreasing and then increasing, and the average value of the comprehensive efficiency in the three years of 2018, 2021 and 2023 is 0.369, and there is still a lot of room to improve the energy efficiency of the green industry.
