Abstract: In this paper, the features of the Larix mastersiana communities in Wolong Nature Reserve are studied on the basis of the floristic geographical composition, the dominant species and the physiognomy and the structure of the community. The data show that there are 34 families, 63 genera and 96 species in the community, and the genera and species which belong to the type of the temperate distribution region are dominant, and the physiognomy of the community is characterized by highleveled deciduous plants with single leaf, unentire leaf, microphyll and herbaceous leaf, but there are a few evergreen highlevel coniferous trees. The community possesses the nature of evident transition. Its community structure divides into tree stratum, shrub layer and herb layer, and it includes 4 species of interstratum plants.