Abstract: The vector tile technology defines the coordinate systems for various scenarios and their conversion method by merging vector graphics algorithm and pyramid rule, and realizes the grouping and splicing of vector graphic data. This paper introduces the basic principle, application method and practice of vector tile technology in data visualizationof railway network and proves its feasibility and efficiency in solving data visualization.In the end, suggestions and measures are proposed for improving the operation mode and maintenance efficiency of the railway transportation dispatching management system.