Abstract：The principle of discrete element analysis method is introduced and applied to simulate a real case of the No.2 landslide on Tong—Wang highway. The geological model is built up with consideration of vertical joints and strata planes as discrete discontinuities in loess. Then the landslide body is meshed into 297 units by the two sets of structural planes，while the units under the sliding bed which is bed rock are treated as fixed. Furthermore，discrete element method is used to analyze the typical characters of the erosion evolution process of landslide. The average velocity，average acceleration，resultant forces and moment in back，middle and front portion of the landslide are calculated. The results suggest that the evolution process of landslide can be divided into five stages，i. e. initial breaking stage，extensive accelerating stage，high speed moving stage，bumping deceleration stage and slow braking stage.
