Abstract: To meet the management, display, application, and dissemination needs of rail transit technology image resources, this paper designed and implemented a rail transit technology image library system based on interactive, commercial, and industry knowledge service concepts. The paper adopted the ASP. NET MVC (Model View Controller) framework and developed image metadata standards and classification systems, implemented functions such as resource integration, retrieval and filtering, classification and browsing, permission billing, user interaction, and backend management. This system has been successfully applied in professional knowledge service work for the entire rail transit industry, which has positive significance in transforming the current operation service mode, meeting the actual usage needs of different users, and improving the industry knowledge service ability and level.