Abstract: The selection of water environment evaluation model index system and the determination of weight are the keys to study the bearing capacity model. Based on five factors of groundwater vulnerability, water environmental quality, water pollution, exploitation degree and the effect of polluted river on groundwater, the comprehensive evaluation and exploitation potential of groundwater environment in the study area are analyzed, with AHP (analytic hierarchy process) as the quantitative research method, adopting the expert grading method to determine each index weight and judge the reliability and validity of the evaluation index system. According to the obtained assessment scores, the division map of bearing capacity evaluation is drawn for the rational utilization of groundwater resources.