Abstract: In order to compare the advantages and disadvantages of different BIM software in 3D modeling of pipeline, and the data exchange mode between the different software, this article based on the compressed air pipeline plane and three-dimensional map of checking library of EMU operation depot, established the information model of compressed air pipeline and valve 3D on the BIM platform such as CATIA and REVIT. The 3D model of locomotive equipment was established by software of SOLIDWORKS and REVIT. Through the conversion of IFC format and the lightweight of IGS format, the model was imported into the CATIA platform, and the importing steps and flow were combed. To efficiently manage the three-dimensional information model and improve the modeling efficiency for the equipment of EMU depot, the article described the method of adding information attributes to the three-dimensional model of the equipment in CATIA software, and established the BIM model library of the equipment based on CATIA software, which greatly facilitated the equipment model batch management, batch modeling and batch modifying.