Abstract: The community selected from the mixed evergreen and deciduous broadleaved forest in Emei is analyzed on the structure, composition and floristic geographical composition. The results show that vascular plants contains 226 species, in which angiosperm are composed by 207 species which belong to 137 genera of 73 families. The community is with more and clearer layers which are tree layer, shrub layer, herb layer and interstraturn plant, and the herb layer is undergrown; The families of vascular plants of Tropical-subtropical, Tropical-temperate distributional patterns account for 22.7% respectively, while genera of temperate distribution take a predominated position(52.9%). The results show that floristic geographical composition of the mixed broadleaf forest in Emei is subtropical in which temperate takes an important part; The community of the mixed broadleaf forest in Emei is in the steady convalescence which have been disturbed years ago, and the biodiversity indexes of the community are low.

Key words: Emei, evergreen and deciduous broadleaved forest, plant flora, biodiversity