Abstract:National wetland park is an important part of the Natural protect Area system in china . It is of great signifi- cance to study its biodiversity and distribution for the management and rational utilization of wetland park. The authors carried out field investigation on the plant community of yingshan zhangjiazui National wetland park by the method of plant community investigation, and studied plant diversity and main community in the wetland park. The results showed that there were 656species of vascular plants belonging to 138families and 409genera in yingshan zhangjiazui National wetland park, including 25species of pteridophytes belonging to 16families and 20genera; 9species of gymnosperms be- longing to 3 families and 7 genera; 622species of angiosperms belonging to 119families and 379genera . The sample plot survey showed that there were 14 plant communities in the wetland park, which were Form . pinus massoniana , Form . Liquidambar formosana , Form . Quercus serrata var . Brevipetiolata , Form . Triadica sebifera , Form . vitex negundo var . cannabifolia , Form . phyllostachys edulis , Form . Miscanthus floridulus , Form . paulownia fortune , Form . populus × cana- densis, Form . pterocarya stenoptera , Form . Typha angustifolia , Form . polygonum perfoliatum , Form . paspalum distichum and Form . Nelumbo nucifera , respectively. These information may be useful for conservation and management of Hubei yingshan zhangjiazui National wetland park.