Abstract: The research was conducted on winter habitat selection of musk deers in Jiulong Mountain Natuer Reserve,aiming to provide basis data for the recovery of populations.From November 2016 to January 2017,The method was used by setting the line randomly and putting on the points mechanically in Jiulong Mountain Nature Reserve.There were 52 quadrats used by musk deers and 78 control quadrats for the investigation.Firstly,there were four nominal variables of forest typs,slope direction,slope position,steep rocky slopes by using the method of Baileys confidence interval analysis.Then there were nine quantitative variables by using single sample Kolmogorov-Smimov tests analysis,including altitude,sheltering class,canopy,food abundance,thickets coverage,slope gradient,human disturbance,snow depth,fallen trees.Through the principal component analysis,13 factors were analyzed comprehensively by musk deer winter habitat selection.Baileys confidence interval analysis indicated that steep rocky slopes,sunny slope,middle slope and mixed forest were suitable habitats for musk deers in winter.