Abstract: Under the background of rapid development of informationization and intelligence, deploying video surveillance system is conducive to improving the management level and work efficiency of water conservancy projects. After on-site inspection and technical comparison, the video surveillance system for the Northern Hubei Water Transfer engineering adopts a four-layer architecture of video acquisition, network transmission, data storage and data access. Combined with the application scenarios and actual needs of the video surveillance system in the project, and considering factors such as funding, deployment difficulty and stability, a video surveillance transmission mode based on wireless bridge technology is proposed. The video surveillance system not only realizes real-time online remote monitoring of the construction site, but also provides information technology support for construction safety, quality, schedule, and environmental protection construction management, greatly improving convenience, accuracy, and efficiency.