以改善巢湖市饮用水源地水质为目标,基于现状河道和水利工程,对比分析了长江与巢湖水质,研究了长江与巢湖水体交换规律、交换量及巢湖水位控制方案,拟定了不同线路、调水量、水位控制等多个调水方案,采用层次分析法比选了调水方案效果,并提出了实际调水应用的建议。结果表明,正向调水、7×108～13×108 m3交换水量和晒滩水位控制的调水方案可取。 In order to improve the water quality of drinking water sources in Chaohu City, based on the status of river courses and water conservancy projects, the water quality of the Yangtze River and Chaohu Lake were compared and analyzed. The exchange law and exchange capacity of the Yangtze River and Chaohu Lake and the water level control measures of Chaohu Lake were studied. Water level and water level control. The result of water diversion scheme was compared by AHP, and the suggestion of practical water diversion was put forward. The results show that the water diversion plan of forward water diversion, exchange water volume of 7 × 108 ~ 13 × 108 m3 and sunning water level control is desirable.