Abstract: Foreign objects falling from highway bridges, ice column intrusion, displacement of protective equipment, and overhead line breakage causing suspended foreign objects in the overhead contact system have become the main content and serious external hazards of railway engineering. However, the existing detection methods are single and outdated, posing a significant safety hazard to the operation safety of overhead contact system equipment. Through the integration and research of existing image recognition technology, computer information processing technology, etc., a scheme for detecting moving objects and real-time comparison of template photos using mean shift method has been proposed. By comprehensively utilizing information transmission, information comprehensive management, equipment remote monitoring, equipment warning and diagnosis, and other means, an intelligent monitoring system for overhead bridges and overhead lines has been constructed. On site operation has shown that the system program runs stably and reliably, and can fully adapt to the operating conditions of electrified railways.