This paper explores the application of BIM technology in the process of detailed design, manufacturing and processing of prefabricated buildings based on the project case of prefabricated residential buildings in Shanghai.The project adopts a plug-in of Autodesk Revit named Precast through secondary development to split components of the residential buildings, and then to design the connection units of planar concrete components, e.g. boards and walls.For non-planar components, e.g. the balcony slab, prefabricated beam and staircase, the Trimble Tekla Structure is used for modeling seperatly. After building model is completed, the software automatically creates the detailed drawings and generates the material list based on processing chart template form the users, which is convenient for component processing plant to summarize the materials.