Shichuan Diaoqiao shoal is one of the main navigation-hampering shoals in the Daxia reservoir region in the Yellow River, which badly affects the ships’safe sailing across this river section. Based on the analysis of the nature of navigation obstruction, and combining with the river model test research, we analyze the flow condition for navigation after regulation, compare a variety of regulation schemes, and determine to adopt the measure of dredge-cutting and building submerged dam. The navigation condition is improved remarkably after implementation of the project and the regulation effect is satisfactory. It may serve as reference for the regulation of similar shoals.