Abstract: This paper analyzed the data content and characteristics of urban rail transit network operation and scheduling command business, proposed a cloud platform based big data service platform architecture for urban rail transit network operation and dispatching, created a data resource catalog with operation, dispaching, evaluation, and security as the main elements, and implemented professional data thematic access services, introduced typical application scenarios such as statistical analysis of passenger flow indicators and passenger flow monitoring and warning to provide decision-making support for operation management and scientific formulation of dispatching strategies.