Abstract:To investigate the environmental risk of soils and groundwater in an abandoned Pb-Zn Mine and its surrounding areas. The heavy metals As, Hg, Ni, Cd, Cr, Cu, Pb, and Zn of soils and groundwater in an abandoned Pb-Zn Mine and its surrounding areas were determined. The single factor pollution index method and potential ecological risk assessment were employed to analyze the effects of abandoned Pb-Zn Mine and its surrounding areas on the concentrations of heavy metals in the soil. The results indicate that soil had been significantly polluted, As, Cd, Pb, and Zn were severely polluted. The main reason for exceeding the standard was inadequate environmental measures in the mining process, and the regional background value was relatively high. The groundwater content did not exceed the standard. The ecological risks exist in abandoned mines, it is recommended that abandoned mines be treated and repaired as soon as possible, and long-term monitoring of groundwater should be carried out. The significance of the research was to provide the theoretical basis for the subsequent treatment and restoration of abandoned mines.