GIS技术是信息化技术和计算机技术结合的产物,是一种研究、管理空间数据信息的系统,并能够以图形、数据等形式满足人们对信息的需求。GIS在水文水资源领域的应用能够实现对水文水资源领域数据信息的高效处理,促进水文水资源领域工作的系统化、智能化发展。文章结合GIS技术内涵及其在水文水资源领域的功能,具体分析GIS在水文水资源领域中的运用,旨在更好的促进我国水文水资源领域管理发展。 GIS technology is a combination of information technology and computer technology. It is a system for researching and managing spatial data information and can satisfy people’s needs for information in the form of graphics and data. The application of GIS in the field of hydrology and water resources can effectively deal with the data and information in the field of hydrology and water resources and promote the systematic and intelligent development in the field of hydrology and water resources. Based on the connotation of GIS technology and its function in the field of hydrology and water resources, the article analyzes the application of GIS in the field of hydrology and water resources in order to better promote the management and development of hydrology and water resources in China.