Abstract: Based on the survey of geography disasters in Ankang city of Shaanxi province, an evaluation index system by choosing annual precipitation, slope, elevation, point density of disasters, soil type and human engineering activities was established. Adopting information analyzing model of GIS, the susceptibility zones of geography disasters in Ankang ctiy was made. The results show that Ankang ctiy could be divide into four geological hazard zones, including high-incidence zone, middle-incidence zone, low-incidence zone and nonoccurrence zone. Among the zones, the area of high-incidence zone is 6 135 km², covering 26.52% of the total area; the area of middle-incidence zone is 8 096 km², covering 35.01% of the total area; the area of low-incidence zone is 6 488 km², covering 28.05% of the total area; the area of nonoccurrence zone is 2 411 km², covering 10.42% of the total area.

Key words: geological hazard, susceptibility, zoning, Ankang city