Abstract: In order to comprehensively grasp the configuration data of railway information systems, promote the standardization and efficient use of configuration data, this paper combined the current status of railway information system operation and maintenance tools, as well as the characteristics of the information system operation and maintenance management system of CHINA RAILWAY, designed the overall architecture, technical architecture, and functional architecture of the railway configuration management system, studied key technologies such as configuration model design standards, automatic collection of configuration data, and configuration data processing, and constructed a two-level information system configuration repository for CHINA RAILWAY and Railway Groups. It implemented the centralized management of configuration data for national railway information infrastructure and application systems, provided basic support for the integration and application of basic data, resource optimization and configuration, and automated operation and maintenance management of railway information systems.