An integrated assessment model for the concentration parameter was proposed. Because the concentration parameter is variable in different periods of the river, an environmental health risk assessment model was developed on the basis of the integrated assessment model. Dynamic cluster analysis was used to obtain the priority of the risk management. The model was used to assess the health risk of 18 sections of the Xiangjiang River in 2007.The result showed that the health risks from As,Cd and Cr6+ were very high. By using the dynamic cluster analysis, the health risks were divided into four categories of “high”, “high-medium”,“medium” and “low”. The health risk of the Songboxia section is the highest, which fell into to the “high” category and needed priority treatment. The health risk of the Huangtuling sector fell into the “high-medium”category. The Guiyangzhen, Aozhou, Zhutingzhen, Fengxi, Baishi, Xiawan, Majiahe, Wuxing, Yijiawan and Zhangshugang sections belonged to the "medium" level. And other six sections belonged to “low” level. With reference to the integrated assessment, most of the sections were more or less polluted. Therefore, the pollution control of the Xiangjiang River must be strengthened.