Abstract：During the construction of hydropower station，high cutting rock slopes are inevitably encountered，especially in the areas full of huge mountains and gorges. To some extent，the research on the stability of rock mass and the high cutting slopes in the areas of hydropower station is more important than that of the dam itself. According to the research on the stability of intake slopes of Jingpin Hydropower Station，which is located on Yalongjinag River，the study methods of huge mountains and gorges are systematically summarized. First，a field investigation on geological condition and the rational parameters of rock mass is taken. Then，the possible failure style of the slopes is estimated. Because the terrain has great influence on the stability of the slopes in this area，a precise model，which can reflect the topography vividly，is established to analyze the stability of the slopes. During the process of the analysis，many methods are used to verify the results. The following conclusions can be drawn：the general stability of the intake slope of Jingpin Hydropower Station is acceptable，while some measures should be taken to reinforce the slopes in the upper layer of . The research，not only ensures the safety of Jingpin Hydropower Station，but also provides some helpful experience to the stability research on high cutting slopes of similar projects.
