Recently, our country has a serious environment pollution problem, and people are looking forward to a high-quality environment. It is necessary for everyone to do something by themselves and build up the consciousness of preventing the environment. For construction, its size becomes larger and larger, but the use of material and equipment becomes more and more. So it is important to introduce the green energy-saving technology. Green Building Technology not only meets lots of customers ’ need, but also improves the competitiveness in construction. This passage talks about the application of building energy efficiency and green building technology which can be the reference for the related work.