Combining with Lishui Qingshan navigation-power junction’s layout in Hunan province, we study the key technology of navigation-power junction’s layout, waterway regulation and navigable flow condition by 1∶100 physical model test, analyze the characteristics of flow on left braided and right braided, and compare the layout of the left braided lock scheme and right braided lock scheme on navigation condition. Then we put forward reasonable layout scheme and regulation scheme and summarize the characteristics of navigation-power junction’s layout on the bending braided river, which may serve as reference for similar projects.