According to the third edition of Guangxi Yearbook (version 1944), the average water level of Jiangxun River 1937 to 1942 is 27.36 meters. The average flow rate is 0.877m/s; The average sediment concentration is 0. 146kg/m3 (the ratio of sand weight to water weight is145.9); The average flow rate is 727 1. 1.2 cubic meters per second. After liberation, the average water level of Jiangxun River for many years was 35.32 meters (Dongta Hydrological Station), with an annual variation of 19.4 meters; The average sediment concentration for many years is 0.35 kg/m3, and the maximum sediment concentration in the section is 3.19 kg/m3 (1954 ~1979); The maximum flow rate is 44900 cubic meters per second. The riverbed gradient is generally between 0.09 and 0.6 ‰.

According to the data of Dahuangkou hydrological station, the annual runoff from May to 10 accounts for 8 1.4% of the annual runoff, and from June to September accounts for 65. 1% of the annual runoff. Due to the inflow of Yujiang River, the distribution of each month is different from that of Wuxuan Station.

The average river width in Guiping City is 573m, with the widest point1000m (Wanjiangkou Town) and the narrowest point110m (Dongta Village, Wang Xun Township). The average water depth is 3.8 meters, and it is navigable all year round. It is the section with the greatest navigation value in Guangxi. Rapids and dangerous beaches include Yanglan Beach, Soy Beach, Buling Beach, Carassius auratus Beach and Gu Yong Beach. Among them, Yanglan Beach has the largest flow of 44,900 cubic meters per second, and a hydropower station with an installed capacity of 200,000 gallons can be built.