Abstract: The potential Shangxintian landslide has a serious adverse effect on the construction and the future operation of the Wudongde Hydropower Plant and its dam.It is therefore necessary to conduct an extensive safety evaluation on its stability.The two dimensional stability analyses are performed based on the geotechnical investigation data.The results indicate that,under the normal conditions,the target slope is stable; under the storm rain condition,it is marginally stable.But,the stability under the seismic conditions is dramatically reduced with a factor of safety of 1.07.

Key words: Shangxintian Landslide, Slide Mechanism, Stability Analysis.