Water is an indispensable part of people's daily work and life, and hydrological water sources management is not only the basic work of social development and national economy, but also plays a vital role in social public services, government decision making and water resources management, so it is very important to do a good job in hydrological water resources management This paper will nalyze the technical needs in the field of hydrological water resources, and explore the existing problems and practical application effects, so as to lay a good foundation for promoting the development of China's water conservancy