Abstract: The construction projects in Hongkong are quite different from those of the mainland. In this paper we describe the BIM data management requirements based on our Shenzhen-Hong Kong project cooperation experience. We focus on the key points of BIM modeling requirements in project of Hong Kong and summarize the advantages and lessons that the mainland can learn from. According the Hongkong experience, with strict modeling standards and cooperation guidelines, it is possible to realize consistent as-built BIM models. We believe future cooperation between Shenzhen and Hong Kong in construction will follow this approach, and a project BIM platform can exploit the full potential of engineering data. With state-of-art information technology, a comprehensive platform architecture that collects various forms of data is proposed in this paper. The BIM data can be retrieved to an independent database to gradually realize BIM application in the full process of construction projects. With the support of "Guangdong-Hong Kong-Macao Greater Bay Area" development policy, a construction project BIM platform can combine the advantages of Hongkong and Shenzhen and has vast potential for future development.