分析了从静态到动态的滑坡运动过程 ,建立了滑坡动态滑动面和瞬间稳定系数的概念 ,分析了滑坡运动过程中瞬间受力状况、运动方向和速度变化 ,进行了滑坡运动速度、力、运动方向及时间关系的定量描述。最后 ,在GIS支持下完成了滑坡在三维空间中运动过程的数字仿真 The process of landslide movement from static state to dynamic state is analyzed. The concept of dynamic sliding surface and instantaneous stability coefficient of landslide is established. The instantaneous stress state, movement direction and velocity change during landslide movement are analyzed. The landslide movement velocity, force and movement The quantitative description of the relationship between direction and time. Finally, the digital simulation of landslide movement in three-dimensional space is completed with the support of GIS