Abstract: The wetland vegetation of Jiangsu province consists of hydrophytes, hygrophytes, halophytes and some plants with saline tolerance which were counted up 484 species. Co_affected by the geographic position and the unique environment of wetland, the vegetation, with obvious aspect changes and simple construction, is rich in flora and complex in geographical elements, regular and low in physiognomy. There are many dominant species with high coverages in the vegetation. The distribution and succession of the vegetation were described and the exploitation and utilization of wetland vegetation especially on marine of Jiangsu Province were discussed.