Based on the annual survey data,this paper analyzes the dydro-dynamic condition and bed evolution process,and researches the river regime of Anqing reach.The characteristics of river bed evolution are as follows:the flood river regime is stable;the Xinhekou point bar is basically stable with slight deposition and erosion;the process of new middle channel is closely related to Xinhekou point bar,Emei sandbar and Qian sandbar.Combining with the implementation of waterway regulation,the fluvial tendency of Anqing reach is predicted.