Shashi river reach is a famous blocking waterway of the middle Yangtze River. According to the General Outline of the Development and Plan of the Main Waterway of the Yangtze River, the construction standard in 2020 here is 3.5 m×150 m×1 000 m, and the navigation rate is 98%. In consideration of the operation of Three Gorges project and external factors such as flood prevention, management of Shashi river reach is underway adhering to the principle of comprehensive management and progressive implementation. The first-stage construction and Lalinzhou protection construction was launched in progression since 2009, which improved the navigation condition greatly and achieved good effects. This paper analyzes the changes of the waterway and navigation conditions before and after the project based on the existing researching achievements and project data after project implementation,and puts forward ideas on follow-up regulation according to the general regulation idea and existing problems in this river reach.