With the popularization of BIM technology and its application, project review and approval based on BIM has gradually became a hot topic in the industry. BIMchecker, an intelligent BIM model checking tool developed by Tsinghua University, has its own characteristics in the structural description of complex building codes and its knowledge based checking engine. Based on the innovative cooperation between Tsinghua University and China Academy of Building Research in Hunan BIM checking system, this paper introduced the method and application of the intelligent BIM model checking tool in the BIM platform and fire protection checking procedure. By constructing the SNL rule library of the fire protection code, applying the semantic reasoning function and the semantic and geometric calculation fuzed implementation of the checking tool, the BIM checking platform can make full use of the checking ability of the BIMchecker tool, while retaining its original features in data standards, process management, visualization, etc.. This paper provides a reference on how to realize intelligent BIM model checking in the building process of project review and approval based on BIM.