Community structure,plant species diversity and productivity of wetland vegetation community were studied in the Bayinbuluke swan conservation region,Xinjiang.The results showed that wetland vegetation is composed of aquatic plants and wetland plants,the number of plant species of cyperacese are more than others families.Simpson index of aquatic swamp is higher than mound swamp.Important value decreased in the order of Carex melanantha,Carex microglochn,Kobresia,filifola,Carex,vesicular,Pedicular,albevti,Triglochin,plustre,Primulasibirica,Average productivity of wet grass of mound swamp is 571.5 g·m^-2,and wet grass of aquatic swamp is 646.2g·m^-2.Below ground Biomass is 13608.8g·m^-2,which is mostly distributed in the 0～10 cm depth of the soil.The cover rate of aquatic meadow is 100%,and the number of species is between 8 and 11 for community of aquatic meadow.