Identification of suitable habitat for animals is of significance for wildlife conservation, regionally ecological protection and the planning of nature reserves. This paper, taking the habitat of Yunnan snub-nosed monkey as an example, selects seven factors affecting the habitat suitability including vegetation types, elevation, slope gradient, slope aspect, distance to water, distance to rural settlements, and distance to roads. Based on GIS technology, this paper constructs the resistance surface. By determining the cumulative resistance threshold, the reachable area is calculated and the patches are divided accordingly. Combining the existing habitat and reserves of monkeys, the comparative analysis showed that the proportion of the suitable habitat in the research area was relatively low. The movement of the monkeys is blocked by human activities or water system, and their habitat is damaged to varying degrees. In addition, the habitat suitability reaches the highest in the middle, followed by that in the north, and the lowest in the south. The method in this paper takes into account the strong blocking effect of obvious surface features on animal movement for the suitable habitat patches, considering the spatial continuity and patch integrity as well. The results can reflect the regional differences of habitat suitability in the study area.