摘要:The paper puts forward the idea of groundwater environment health and constructs an evaluation indexsystem for the groundwater environment health according to the connotation of groundwater environmenthealth. The 17 evaluation indexes were simplified to obtain the most simple evaluation index system throughthe simplification function of the rough set, and then the weight of the evaluation index was calculatedthrough the weight calculation function of the rough set, and the quantitative evaluation of groundwaterenvironment health was carried out by means of a comprehensive index method. The evaluation resultsshow that the attribute simplification and weight calculation of the rough set can be applied to thecomprehensive evaluation of hydrogeology.