Survey and design industry in the construction field, which take the first application of computer technology in China, has become a developed industry.PKPM software, which combines structural analysis and construction plans in one platform, is the most widely used software in China.However, the exchange of information between different software is mainly done by hand, which badly hinders the software from further popularization.It lies in the establishment of the "standard" to solve the problem of information exchange and data sharing.With a uniform standard, there will be a common language to transfer information between different systems.For this purpose, the IAI organized IFC standards.In this paper, the data interface from PKPM to the IFC is introduced.