Qianwei navigation-power junction is located in the middle and lower reaches of Minjiang River，in the hinterland of Sichuan Province with densely populated surrounding areas and a long history. This article introduces how to consider the topography，geological conditions and the impact of the junction construction on the surrounding humanistic environment in the overall layout of the Qianwei navigation-power junction project，so that the various hydraulic buildings with different functions can be coordinated with each other and give full play to their functions，as well form a unique project.