The Yangtze River was an important shipping channel,which seriously affect the safe navigation of ships in obstructing the navigation beach section.Based on measured hydrographic topographic data,the research was carried out on Laohuliang beach of Fuling to Fengdu.The navigation obstruction characteristics,regulation parameters and regulation scheme of typical beach section were studied by using two-dimensional flow mathematical model.Based on the two-dimensional flow mathematical model and ship maneuvering mathematical model,the effectiveness of the remediation plan was evaluated and the optimal remediation plan was determined.This research results can provide technical support for eliminating navigation bottlenecks,ensuring ship safety,and smooth navigation channels.