Abstract：Based on the geological exploration of Nanzhu landslide，the stability analysis of the landslide is studied when the water level of the Yangtze River falls from 175 m to 125 m. The results show that the landslide will be unstable under this condition. As a result，treatment needs to be carried out. Compared with a pair of treatment schemes，it is found that the anti-slide pile scheme is reasonable. Moreover，a new design method of anti-slide pile and the calculation code are achieved；and it is verified by the centrifugal model test. Finally，the optimal treatment scheme and additional engineering measures are proposed.
