An intelligent construction management system for hydropower project includes a dam panoramic information model DIM, which is oriented to water conservancy and hydropower project and establishes a large engineering data center to realize the integrated management function of the whole engineering life cycle data centered on building structure; a comprehensive sensing function module, which achieved the progress of the construction of the whole scene, quality, safety, construction, resources, monitoring, environmental data collection and storage; a comprehensive analysis function module, through the establishment of online scientific research simulation analysis platform, which achieves the simulation, analysis and evaluation of engineering progress and process structure safety in the realenvironment. Making use of big data and AI technology, the dynamic analysis of massive engineering data is carried out, and the comprehensive analysis and evaluation of engineering progress, quality and safety are realized. By adopting the system of the invention, the information collection, intelligent analysis, real-time control and cooperative management of the whole process of the hydropower project construction are established, and the intelligent construction of the hydropower project is realized.