According to the needs of the project construction, in order to fully verify the rationality of the overall layout plan of the hub buildings, the overall hydraulic model test for the Bazizui hub project in Xinjiang river of Jiangxi province was carried out.The hydraulic characteristics and flow patterns are studied through the model test, and the safe navigable flow conditions are created under the conditions of energy dissipation and erosion prevention.Meanwhile,the overall layout of the hub and the shape of the energy dissipator are determined.The test results provide an optimized layout plan for the hub buildings and provide a technical basis for engineering design.