根据江苏省昆山市设在吴淞江、庙泾河和傀儡湖中３个监测点枯丰平三季的水质监测资料，采用水质标准类别法和变异系数分析法，比较论证了３种水源的优劣．研究结果对当地有关部门科学选择水厂取水头部位置，保护水源、治理水质污染有重要意义． According to the water quality monitoring data of the Qunfengping three seasons in three monitoring sites of Wusongjiang, Miaojinghe and Puppet Lake in Kunshan City, Jiangsu Province, water quality standard classification method and coefficient of variation analysis were used to demonstrate the advantages and disadvantages of the three water sources. The result of the study is of great significance for the local departments concerned to scientifically select the location of water intake head, protect water source and control water pollution.