选取地形地貌、地质、气候、水文、植被和人为活动6个致灾指标,人口密度、工程设施和土地利用3个承灾因素,将二级模糊综合评判模型用于单体滑坡风险的评估.先在同类因素间进行初级评判,再利用初判的结果进行类间的二级评判.以青川窝前滑坡为例进行了二级模糊综合评判的实现,得出危险度为0.49,易损性度为0.067,危害度为0.033. Six secondary hazard assessment indexes including landform, geology, climate, hydrology, vegetation and human activities, population density, engineering facilities and land use were selected to evaluate the risk of single landslide. First of all, make the first-level judgment among the same kind of factors, and then use the results of the first judgment to make the second-level judgment between the two classes.Using the landslide in Qingchuan nest as an example, the second-level fuzzy comprehensive evaluation is carried out, the risk is 0.49, The degree is 0.067, the degree of harm is 0.033.