Informatization is an important way to realize green building. From the beginning of this century, after more than ten years of development, decoration industry informatization started from scratch. in recent years, the promotion of BIM technology has led information technology to a higher new level. Based on Internet search, interview, field survey and other research methods, this article lists problems that the decoration industry informatization is facing and tentative solutions, summarizes the new experience of the decoration industry informatization: information system should adopt top-level design, and BIM technology should be applied. When applying BIM technology, the following should be considered: indoor performance analysis, 3D scanning, parametric decorative typesetting, 3D printing, Intelligent robort site measuring and marking, cloud platform collaboration, etc.. in this way, design and construction could be integrated, costs be saved considerably and the construction industry gains new strength. This practice may also ignites the steady development of related industries.