Abstract: 66 Species of aquatic plants have been counted through the preliminary investigation in water areas and wetlands of Changsha, they belong to 35 families and 54genera, including 40 species of emergent plants, 9 species of leaves floating plants, 6 species floating macrophytes, and 11 species submerged macrophytes. we analyzed the diversity of aquatic plants, and their habits and function. The study provide the theoretical basis for the introduction and protection of aquatic plants.