Abstract: In this paper, the vegetation on the lower mountains near West Lake in Hangzhou has been classified with Braun-Blanquet Method based on 132 plots. It can be divided into two Associations. (Association of Schima superba and Association of Pistacia chinensis) , seven Subassociations, and six Variants. 28 groups of diagnostic species are analysed. The characteristics of the syntaxa and their environmental conditions as well as the spatial continuity of the plant communities are well shown by the research.