Taken low head power station such as Jinzitan、Chuanwanggong and Leying as study objects,this paper studied the altitude、form、arrangement manner of the approach wall and sediment storage wall in front of the water intake through experiments.The operation mode of hydraulic power station and sand sliting situation in front of the water release and sand sluicing gate are also studied.The results showed: As long as taking reasonable measures, we can guarantee the water inlet of convex bank fetch top layer clear water to ensure hydraulic power station work in good condition. Years of practice has verified the research conclusions.