The Nianpanshan-Chenjiaji reach of Hanjiang river is characterized by fine sand,small of riffle-pool difference,and frequent variation of navigation channel,and navigation-obstruction exists in both dry and flood seasons.Based on the research,we adhere to the regulation principle of integral consideration,making the best use of situation,flats stabilization & bank protection,and middle-water & low-water combined regulation.According to the variation characteristics of the river bed,we chose several engineering schemes,by which the navigation channel kept stable and the navigation condition was improved greatly.The experimental research achieved the perspective effect.