It is important to analyze sensitivity of landslide factor. The west area in new Wushan County was taken as an experimental area. Logistic model was set up for which independent variables are landform
physiognomy
lithological character and geological structure conditions and dependent variable is historical landslide condition. The sensitivity degree is expected according to Bayesian information criterion. The authors design test method which taken in factor one by one and compared with superior degree on not nested model. The results of sensitivity degree are lithological character
height
distance to effected structure line
gradient
slope direction
slope shape. The experiment provides a new and credible method for evaluating slope stability.