Abstract: The purpose of this paper was to discuss and research the application of BIM technology in catenary engineering of high speed railway. In the design stage, the three-dimensional family library BIM model of catenary components was established, and the optimal design of catenary was implemented by parameterized rapid wrist arm assembly modeling, line model layout, collision inspection and simulation. The design efficiency was improved by BIM automatic statistics of engineering quantity and drawing function. In the construction and installation stage, BIM technology was used to demonstrate the schedule of the project, disclose design and construction plan documents, guide the construction and improve the construction quality. The BIM based catenary data integration and transmission could implement that the construction management process information carried by BIM model of overhead contact line was seamlessly transferred to operation and maintenance stage, which laid a foundation for future intelligent operation and maintenance.