以地州市为基本区域单元 ,给出了四川省泥石流危险度、易损度和风险度的定量评价结果。其中凉山州、阿坝州、甘孜州、雅安地区和攀枝花市为泥石流高风险区 ,与以上四个地州市具有泥石流高危险度密切相关。风险度的时空变化规律以及与危险度和易损度的相互关系亦在文中作了论述。 Based on the prefectures and cities as the basic regional unit, the quantitative evaluation results of the risk, vulnerability and risk of debris flow in Sichuan Province are given. Among them, Liangshan Prefecture, Aba Prefecture, Ganzi Prefecture, Ya’an Prefecture and Panzhihua City are high-risk areas for debris flows, which are closely related to the high risk of debris flow in the four prefectures and cities. The temporal and spatial variation of risk degree and its relationship with the degree of risk and vulnerability are also discussed in this paper.