Abstract: In Dongfeng hydropower station, the right bank foreshore slope is located at the right side bank between the water inlet and dam. The No. 2 sandwich soil layer lies under the dead storage level 936 m, as result of long- time soaking, the shear coefficient decreased, and the stability coefficient of the side slope rock couldn' t satisfy with the criterion. Then, application of the steel tube shear pile rehabilitation was carried out. This paper introduced the geological feature of side slope, the mechanical characteristics and function of the steel tube shear pile, as well as its application.