Abstract: In order to further increase the application proportion of BIM technology in water engineering management, and improve the government’s refined management level and efficiency of large-scale water engineering projects, this article takes the Shenzhen Water Affairs Bureau as an example to analyze BIM technology in water engineering project management Research on the application model. Through the establishment of a local water engineering BIM application standard system, the establishment of a BIM+ water engineering smart management platform, and the pilot application of engineering projects, the initial establishment of the Shenzhen water engineering BIM implementation system was achieved, while the goals of improving design quality and optimizing construction procedures were achieved. This case The successful landing of the project provides reference for similar practices in other cities.