Abstract: In recent years, with the continuous development of the South-to-North Water Diversion Project, the importance of hydrology and water resources management in water conservancy projects has increased. At the same time, hydrology and water resources management have provided a guarantee for the overall quality improvement of water conservancy projects. Based on this, this article explores the management of hydrology and water resources and its application in water conservancy projects in order to further improve the level of water resources management.