Abstract: In Huaying mountain, the geological structure is very complex, mining and other human engineering activities are intense, and geological hazards are well developed. Taking the middle section of Huaying mountiainas the study area. Based on fully collecting the latest geological hazard database and field investigation, the law of development and distribution of geological hazards is analyzed from the aspects of topography and landform, geological structure, River erosion, surface cover and human engineering activities. The weanalyzed the sensitivity of hazard-brewing factors based on the WOE model. Innovatively, the variance of relative coefficient of evidence weight is used as sensitivity index. Finally, two sensitivity indices are used to quantitatively analyze the influence degree of each hazard-brewing factor on the development and distribution of geological hazards. The results show that:(1)The spatial distribution of geological hazards is obviously different and uneven. Geological hazards mainly distribute along the piedmont zones on both sides of Huaying Mountain. The geological hazards on the western slope are more developed than those on the eastern slope. (2)The influences of hazard-brewing factors on the development of geological hazards are obviously different. The sensitivity of geological hazards to engineering geological formations factor is the highest. Engineering geological formations, slope heights, mining development and surface cover play a relatively strong role in controlling the development of geological hazards. Highway construction and river erosion play a weak role in controlling the development of geological hazards. (3)Using sensitivity analysis method based on WOE model, we can quantitatively analyzed the influence of hazard-brewing factors on the development of geological hazards. This method is scientific, reliable, convenient and feasible. The research results can not only provide scientific basis for the prevention and control of geological hazards in Huaying Mountain, but also provide new ideas for the study of the relationship between hazard-brewing factors and geological hazards and the sensitivity of geological hazards.