模糊评价（评审、评判、决策），即在评价过程中引入模糊性概念，运用模糊数学来处理水质评价的一些问题，以反映水质质量状况或水体污染程度的不确定性。模糊数学是研究对这些模糊性问题进行定量处理的一种方法，而层次分析法（AHP）是用于进行定性和定量因素相结合的一种有效决策方法。将这两种方法互相结合对水质进行综合评价的方法称为模糊层次综合评价。-Fuzzy evaluation (assessment, evaluation, decision-making), which was introduced in the evaluation process fuzzy concept of fuzzy mathematics to handle some of the problems water quality assessment to reflect the quality status of water quality or water pollution degree of uncertainty. Fuzzy Mathematics is the study of these fuzzy problem processing method for quantitative and analytic hierarchy process (AHP) is used for the qualitative and quantitative factors combine an effective decision-making method. These two methods combined with each other on the water quality comprehensive evaluation method is called Fuzzy AHP Comprehensive Evaluation.