Abstract: Against the backdrop of the water conservancy industry being transformed by new productive forces, digital twin technology is emerging as the core engine for the modernization of hydrology.To enhance the accuracy of hydrological monitoring and forecasting in the Yangtze River Basin and strengthen water security safeguards, hydrological station s digital and intelligent upgrading and digital twin construction hold strategic significance.Based on the construction requirements of key hydrological stations in the Yangtze River Basin and within the overall framework of building a digital twin Yangtze River, we employs modern ICT technologies such as the Internet of Things, big data, and cloud computing.Centering on the main line of full-element perception—intelligent application—socialized service, it systematically elaborates on the practical paths of digital twin hydrological stations in terms of technical architecture, business innovation, capability enhancement, and ecological expansion.It aims to provide a replicable Yangtze River Solution for the construction of smart water conservancy and promote the transformation of hydrological services from single technical support to diversified value creation.