Abstract: Based on the characteristic analyses of Shiwutan beach channel, which is dangerous, torrential, crooked and narrow, of Hongshui River, and according to the relevant hydrometric and topographic data, the regulation principle and measures are presented. Twenty-four sets of tests have been carried out considering the problems in the two design plans, and the optimum regulation plan is then presented, involving excavation and widening of Pailu and Zhongcao, excavation Bailangjiao and longzhu beaches, and smoothing of the shoreline.