Since the 1980s, CAD technology has brought the revolution of building design in construction industry.Recently BIM technology is leading another revolution in the building industry.In view of the application of BIM technology, this article briefs the situation of BIM research in domestic and overseas, and describes the construction of the building information platform based on BIM technology.Finally, this paper points out that the core of BIM technology is sharing and exchange of building information.Through the construction of the building information platform, the information models that are stored in BIM database with graphical user interface can be utilized for planning, design, construction and maintenance by all professionals.Then the collaborative work among domains and departments in construction industry can be realized with BIM technology.