Abstract:Based on study of groundwater in Huancui district of Wehai city, choosig 10 factors, by using single index assessment method and composite assessment method, underground water in shallow part in this area has been analyzed and evaluated. It is showed that water quality is good in most research regions, while water quality has become worse in partial areas due to human activities. The major exceeding standard factors in the study area are SO24, NO3, Cl and total hardness.