Abstract: The water level in three Gorges reservoir periodically and concentrated rainfall are the main factors influencing landslide, both from the slide weight of the soil, groundwater, physical-mechanical properties of rock and soil aspects cause varying degrees of impact on landslide stability. Through the study of singing landslide, landslide rainfall and reservoir water level fluctuation, there is a strong correlation between fragile geological structures, rainfall and reservoir water level fluctuation of three coupled deformation due to landslide.