Abstract: In order to enhance the intelligent level of operation and maintenance management of urban rail transit power supply equipment, and fully leverage the role of intelligent monitoring systems in facility equipment maintenance and management, based on the facility equipment operation and maintenance management platform independently built by Nanjing Metro, this paper designed an intelligent operation and maintenance comprehensive management and control system for urban rail transit power supply equipment. This system integrated on-site perception, production management, data sharing, and intelligent analysis. Through technologies such as equipment ledger mapping, alarm information management, and data intelligent analysis, it implemented effective management of on-site equipment intelligent monitoring system data. Application practice has shown that this system can improve the efficiency and maintenance level of facility equipment fault handling, provide more effective decision-making basis for the full life cycle management of facility equipment, and ensure the safe and stable operation of urban rail transit power supply system.