Abstract:A slope locates at the right bank of a reservoir above highroad,its soil composed by weak sandstone and pulpy rock.The age-old slope is affected by the drape,zone of fracture and ground water.The rock of surface layer is airslaked,discharged and made weak.The slope will slide again.Through analysis the reinforcement of the high slope slide and its effect,the result shows that after reinforcement the slope incline to stability.