Abstract: The 3D laser scanning reverse modeling technology has been widely adopted in various fields of building construction due to its high efficiency, accuracy and low cost.However, 3D laser scanning belongs to measurement field while building information modeling belongs to construction field How to seamlessly connect two types of information techniques is worthy to explore by building information modeling. Using some common modeling softwares such as 3ds Max, Rhino, Revit and SketchUp, the paper probed into the realization method of reverse modeling with focus on its key links, and meanwhile explored the application range of several reverse modeling methods respectively according to the features and application requirements of each building information model built in reverse, which could provide a reference for BIM engineers. The realization method of building reverse modeling based on 3D laser scanning not only could achieve cross-discipline application from measurement software to building modeling software, but also enrich the application experience of Building Information Modeling Technology.