Based on the theory of extenics,identifica tion & multi-factorial evaluation model of matter-element was discussed,the de pendent function of groundwater water quality was produced.

• 运用可拓学理论，论述了物元分析识别评判模型，建立了地下水水质评判的关联函数，为定量评价地下水水质提供了科学依据。