Abstract: Sow cage debris flow formation conditions,the development trend of the controlled factors and changes in and around the region in Kangding representative.Through investigation,the two sides sow cage groove-forming region larger landslides,landslides of six major and three marsh sediment soil,slope stability is poor,the heavy rainfall,saturated with water and seismic cases,the possibility of instability the larger.Comprehensive analysis of the total sow cage groove loose material reserves of 268050 m³,a strong source of live animals(a landslide material source to provide the maximum possible amount) reserves of 22550 m³.From the water,topography,source material supply,labor activities,and sow the cage debris flow in the active phase,the occurrence of landslides more likely.