Abstract:Based on the water chemistry monitoring data of shallow groundwater for years in Guangrao county, this article summarized the hydrochemistry type of shallow groundwater and the dynamic evolution characteristics of main hydrochemical components. The results show that the shallow fresh groundwater in the south has the trend of deterioration generally. And the anion type of three monitoring stations in the four stations has changed or to be changed from HCO3 to HCO3·Cl, also the content of salinity and chloride has a rising trend. These changes mainly caused by the formation of groundwater drawdown funnel.