Abstract: quality of Jihe River and subsidence water was evaluated with the comprehensive water quality identifi⁃cation index evaluation model. The results showed that nitrogen and phosphorus in Jihe River and sub⁃sidence waters were mainly affected by the surrounding non-point source. From October 2019 to June2020,the contents of TN and NH3-N increased with time. In the rainy season,the maximum values ofTN in subsidence waters and Jihe River were 5.55mg/L and 6.33mg/L,respectively,and the maximumvalues of NH3-N were 1.27mg/L and 1.42mg/L,respectively. The contents of Cu,Zn and Pb in thesubsidence waters were higher than those in Jihe River. The flow of Jihe River improved the water qual⁃ity of the subsidence waters. Affected by precipitation and the water exchange with Jihe river,the waterquality of the subsidence waters fluctuated greatly in rainy season. The water quality of Jihe River andsubsidence waters meets the requirements of class IV in environmental quality standards for surface wa⁃ter(GB3838—2002).