In order to promote the BIM application in the design of prefabricated building, this paper compares the BIM collaborative design method with the traditional design method. The BIM-based IDM (Information Delivery Management) requires to establish a PCP collaborative design conceptual model. The accuracy of BIM model in different design stages is determined, and the parametric design tools, Dynamo and Structural Precast for Revit, are applied to split prefabricated components, configure reinforcement and analyze structure of prefabricated buildings. The effectiveness of BIM based collaborative design method is verified through a practical case example.