There are many sandy pebble bending braided reaches of Minjiang River，and the river regime characteristics and navigation obstruction characteristics of different braided reaches are very different. Different channel regulation measures for bending braided reaches of mountainous rivers will lead to significantly different changes in hydrological conditions，sediment composition and channel structure at the regulation sites，and also have significant differences in the impact on the navigation function of channel regulation sites. Using the technical means of combining 1：100 normal river physical model test and self-propelled ship model test，this paper studies the regulation measures of Bawangtan group bending braided reaches of Minjiang River，optimizes the plane design parameters such as route selection，regulation building size and spacing in mountainous rivers bending braided reaches，and proposes the regulation scheme for class III channel of Bawangtan group bending braided reaches of Minjiang River. The results show that the regulation purpose of increasing water depth and improving water flow conditions can be achieved by optimizing the route layout and combining engineering measures such as dam body adjustment，excavation of compound navigation channel，and placement of submerged dam or filling channel at the downstream.