Abstract: The plant community survey was conducted on the 1-ha forest dynamics plot established by the Castanopsis eyrei community in Jiugongshan National Nature Reserve, Hubei.The species composition, flora, diameter class structure and point pattern analysis of woody plant in the sample plot were analyzed.The results showed that: (1) A total of 132 species of woody plants（DBH≥1 cm）, belonging to 42 families and 78 genera were found in the community.Among them, Ericaceae, Fagaceae, Lauraceae, Rosaceae and Aquifoliaceae are the dominant families, with Quercus serrata, Rhododendron latoucheae, Cyclobalanopsis glauca, Lithocarpus henryi and Castanopsis eyrei are dominant species; (2) Pantropical distribution of plant families, genera in the communication accounted for the most, respectively with 30.95% and 20.51% ; (3) The diameter class structure of all woody plants in community was an inverted-J shape, the number of small-size individuals is large, and the forest community is in strong renewal status; (4) The spatial distribution pattern of individual woody plants in the plot is mainly aggregated distribution, and some dominant species are aggregated distribution at small spatial scales and random distribution at larger scales.