In this paper, the recording method of all information in the life cycle of building information modeling BIM (Building Information Modeling), geometric model browsing based on 3D digital technology, historical and cultural information of building, design and construction information, disasters and maintenance records and inquiries, the physical properties of the local components, records and queries of the construction process, BIM-based heritage and buildings analysis were researched. It provides a reliable basis for all decision-making of the protection of cultural relics and the most comprehensive information for the study of heritage buildings.