Based on the study of mechanism of a past landslide taken place in Kumamoto of Japan, this study firstly proposes the mechanical parameters for landslide hazard evaluating using a 3D slope stability method. 在调查和分析了发生于日本熊本(KMJ)地区的一边坡破坏及其灾害的机理后,采用边坡三维稳定性分析推求了适应邻近区域边坡稳定性分析的物理力学参数;