The Qujiang Fengdongzi navigation project is located in the middle reaches of the main stream of the Qujiang River. The river course indicates that it is a typical mountain river. It has the characteristics of large fluctuations of flood and dry water levels，a large river bend coefficient，and development of forks. The project development tasks include navigation，power generation，urban water environment improvement，etc.，and the comprehensive utilization requirements are high. Due to the large number of buildings in the hub，the overall layout needs to meet the operating conditions of the ship locks，release sluices，power plants，fishways，and other buildings at the same time，facilitate operation and management，and combine the construction diversion buildings with permanent access，which is relatively difficult. Through the comparison and selection of the left and right banks of the ship lock，the layout of the ship lock and the power station on the same or different banks，the layout of the far and near dams at the exits of the fishways，combined with the hydraulic physical model test，this paper proposes the general layout of the ship lock along the branch，the drainage channel，and the fishway along the embankment. The scheme realizes the consideration of the layout requirements of each building of the hub under the premise of navigation.