The paper appraises the water quality of Yongjiang river in Nanning city river section of Zhujiang river basin of the basis of in troduction of water environment quality grey relation analysis.

• 本文在详细介绍水环境水质灰关联评价分析方法的基础上,对珠江流域支流邕江南宁市河段进行了水质评价。