Abstract: The fuzzy information analytic method is used in the stability analysis of landslide on expressway in Yun-Nan province. This paper applies the fuzzy information analytic method such as information distribution and information concentration to the 50 sets of data of landslides. These landslides are located on the Yuanjiang-Mohei expressway in Yunnan Province. The fuzzy relationships are developed for the landslide stability with respect to the height, angle of slope, cohesion, and internal friction angle of landslide. These parameters are the important influence factors. The corresponding model of landslide stability analysis is established. The developed model is verified with other landslide in the area. It is indicated that the model has low error and good effect.