Abstract:With the continuous improvement of China’s economic level, there is an urgent need for hydrological work to provide more accurate and faster and more comprehensive hydrological monitoring data and rich content and visual and intuitive service products. On the basis of summarizing the present situation of hydrological modernization in Jiangsu Province and analyzing the main existing problems, this paper expounds the developing ideas of hydrological modernization from the aspects of making planning, advancing reform, strengthening talents and increasing investment, etc. It is suggested that the modernization of hydrology in Jiangsu Province should be promoted by optimizing the network system, improving monitoring capability, intelligent information processing and deepening product service, it can provide guarantee for high quality development of hydrology in Jiangsu Province.