Abstract: There are a large number of lines and stations in railway hub, with complex structure and complicated modeling. In order to build the digital model of railway hub network, the key data of railway hub network entity was read from DXF format data file by using the characteristic data of existing lines, stations and other entities in AutoCAD hub drawing document, and the business relationship between entity data was established. The network digital model was generated by using VS 2013 to provide data support for the research and optimization of railway hub network. The above modelingmethod can be used to reduce the workload of modeling and effectively improve the work efficiency.