Abstract: As a key hub of regional water conveyance project, the construction process of Dongjiacun aqueduct has the characteristics of complex structure, high-altitude operation, high quality requirement and high safety risk. The traditional construction management mode has the problems of information fragmentation, low coordination efficiency and lagging risk response, which is difficult to meet the needs of modern engineering construction. This paper focuses on the intelligent realization of the intelligent tensioning module in the system. By constructing a 'perception-analysis-control' closed-loop system, integrating Internet of Things monitoring, PID adaptive control and digital twin technology, the real-time monitoring, precise control and process traceability of prestressed construction are realized. The application results show that the module improves the tension control accuracy to ±1.5%, and the prestress loss rate is reduced by 50%. The proposed method provides a digital and intelligent solution for the construction management of aqueduct projects, and also provides a reference for the intelligent construction of water conservancy projects.