Abstract: Beijing-Zhangjiakou high-speed railway is the first intelligent high-speed railway in China in which building information modeling is applied to all specialties in the whole line and the whole life cycle. In combination with the BIM applications of its key project - the Badaling underground station and tunnel engineering, we focus on consistency expression of multiple specialty design data based on relevant BIM standards for railway engineering, build the full feature data model of Badaling underground station and tunnel engineering and set up a multi-specialty collaborative design platform by using the digital railway multi-specialty collaborative design software developed by China Railway Engineering Design Consulting Group Co.. This platform can enable integrated display of traditional discrete design data of specialties and facilitate the comparison and optimization of design schemes, thus conducive to improve the design efficiency and quality and realize the intelligent construction of railway engineering. Besides, we propose to fuse the full feature data model with massive 3D point cloud data that can reflect real situation of railway infrastructure in the operation and maintenance stage, so as to provide support for the consistency checking of railway infrastructure in the operation and maintenance stage.