【Abstract】 Glacier debris flow frequently bursts in western China,with the characteristics of complex causes,large scale,cause huge losses. Glacier debris flow warning is an important part of non-engineering measures for disaster prevention and mitigation. However,there is lack of warning method and techniques,and even fewer successful cases. On the basis of exploring the origin mechanisms of glacier debris flow,in this paper,key indexes are selected,such as temperature,daily rainfall,soil moisture content,surface displacement and downstream mud level. The index ranking method is used to analyze the importance of each index,and then the early warning index system and classification are determined. On this basis,the dynamic changes of various factors in the area of K636 of Du-Ku Highway were monitored. A successful warning was given 12 hours in advance on July14 th,2017,which achieves advance warning,disaster prevention and mitigation purposes.更多还原