Forest Musk Deer (Moschus berezovskii) is an important member of ecosystem and has great commercial value also. Forest musk deer is threatened by poaching for musk pod and habitat fragmentation. Therefore, Studying on Musk Deer’s habitat preferences plays a crucial role in protecting their habitat. Musk Deer is a solitary mammal and is not easily found in the field. However, Musk deer has a specific defecation behavior that they uses repeatedly one or more specific defecation sites. Those latrines can be found through out its habitat. In order understand the habitat preference of Forest Musk Deer in Tangjiahe National Nature reserve, we selected 17 quadrats of 1 km × 1 km in size through out the elevation gradient 2 300﹣3 200 m (Fig.1). Within each quadrat, we checked the deer latrine by walking a transect of 2.5 km length and 10 meter width. We also recorded both biotic and abiotic factors within the transcetion. Ivlev’s electivity index, generalized linear model and multiple correspondence analysis were used to analyze the data. We found that the forest musk deer prefers to use latrine sites in coniferous and broad leaf forests (E = 0.528) and avoid evergreen broad-leaved forest (E =﹣1)，secondary deciduous broad-leaved forest (E =﹣0.816) and evergreen and deciduous broad-leaved forest (E =﹣0.585). Latrines of musk deer were densely distributed between 2 000 m and 2 600 m altitude. Further more，shrub coverage and slope have a crucially influence in latrine preference of forest musk deer (Table 2, 3).