According to the demand of the whole industry chain of prefabricated building, and based on the independent BIM platform, this project carries out the key technology research on the collaborative work of the prefabricated building design, production, transport and construction, establishes the BIM -based whole process application system of the prefabricated building, and applies it to the demonstration project application. Through the implementation of this project, independent intellectual property BIM platform, software, systems and standards are developed to provide technical support for the whole process application of the prefabricated building. The project fully explores the advantages of BIM technology information integration, improves design efficiency by more than 20%, and reduces 80% manual test and measurement, greatly reduces engineering cost, which has obvious social and economic benefits and promotes the sustainable development of the construction industry.