Abstract: To counter the characteristics of less utilization frequency and long prediction period of the flood storage and detent ion basin,the method of optimal town distribution in the reset lement of affected residents plan is presented by using the regional distribut ion theory and considering the industry and agriculture devel opment,the natural and geographical features and relocates' production and living conditions under the premise of utilizing the flood storage and detention basin rationally and effectively. This method is applied to the embankment area plan of Hongzehu Lake.