鉴于水环境质量评价体系无法避免指标赋权,而指标权重的精确性直接影响评价结果的可靠性,在建立模糊数学模型中采用组合权重,综合考虑主观、客观两方面的因素,并应用于水环境质量评价中。实例分析表明,基于组合权重的模糊数学模型得出的评价结果可信,从而肯定了权重的处理方法,丰富和改进了评价方法。 In view of the water environment quality evaluation system can not avoid the index weight, and the accuracy of the index weight directly affects the reliability of the evaluation results, the combination of weights in the establishment of fuzzy mathematical model, considering both subjective and objective factors, and applied to water Environmental quality evaluation. The case study shows that the fuzzy mathematics model based on the combined weights has a credible evaluation result, which affirms the weighting method and enriches and improves the evaluation method.