In order to solve the security risks caused by bridge damage, a cloud platform for bridge health monitoring based on BIM+GIS was proposed. With the cloud platform as the development end and the application of BIM technology combined with the mature sensor technology and Internet technology, a new bridge health monitoring system architecture under the mode of "BIM+GIS" was proposed, and a comprehensive management platform for self-diagnosis, visualization, real-time warning and safety assessment of monitoring data was established. By integrating BIM and GIS, GIS provides the basic framework and BIM provides accurate information model to further strengthen information sharing and realize the multi-user collaborative management of bridge safety operation and the integrated operation and maintenance management of monitoring and maintenance. Keywords: BIM+GIS; Internet technology; Online monitoring; Integration

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