BIM (building information modeling) realizes by using digital technology to create a model of architectural project design, construction and project management process, pioneering the use of digital models for building life-cycle management of new ideas. In the serious situation of social total resource consumption in buildings, energy accounted for thirty percent to 40, people gradually improve the consciousness of the building efficiency, to improve the construction resource to energy efficiency and the building's impact on the environment, to achieve the harmonious development of people and buildings, man and nature, architecture and nature, the combination of green building and BIM technology, forms the concept of green BIM, which has received worldwide attention.