Based on investigation,greening structure on riparian zone of Xuzhou area is divided into five categories,and Shannon-Wiener diversity index of the riparian vegetation is quantified.The study shows that there are significant differences between urban area and rural area in the riparian structure.The riparian structures in urban area are dominated by the types of garden and high-grade wall,and plantation is the main type of riparian structure in rural area.The diversity of woody plants in rural area is similar to that in urban area.But in rural area,there is higher herb diversity than the one in urban area.The riparian structure types have remarkable effects on the riparian vegetation diversity.The diversity of trees varies slightly among different structure types.The type of high-grade wall is significantly higher than other types in shrub diversity,and the type of plantation takes highest grass diversity.The riparian width gives a significant impact on riparian structures.At last,some suggestions on the transformation of riparian zone in Xuzhou area were given.