The invention discloses a railway track BIM modeling method based on a Dassault V6 system. The method comprises the steps of 1, building a railway track BIM standard member base on the basis of the railway IFC data storage standard, and the IFD railway engineer information model classification and coding standard; 2, using a CAA secondary development mode to build a railway framework with an ultrahigh curve; 3, determining the spatial position of a sleeper and a track plate in a three-dimension space; 4, using the CAA secondary development mode to generate a ballast track bed model, a base ofa ballastless track and a track bed plate model with different sub-rail foundations; 5, using the CAA secondary development mode to convert the ballast track bed model, the base of the ballastless track and the track bed plate model into a BIM model according to the railway IFC storage standard and the IFD coding standard. By means of the railway track BIM modeling method based on the Dassault V6system, the railway track BIM model with information is built in batches according to the railway IFC storage standard and the IFD coding standard based on the Dassault V6 system.