Abstract: The salty meadow community of Hutubi, Xinjiang was analyzed by DCA, CCA and DCCA. The environment factors include level of underground water, depth of the clay layer, thickness of clay layer, pH value of underground water and mineral contents of underground water. The spatial coordinate matrix was established in order to partition out the effect of the spatial pattern to vegetation variation. The results show that the level of underground water and the pH value of the underground water are two main factors affecting the vegetation variation; the effect of spatial pattern to vegetation variation is larger than that of environmental factors to it.