Abstract: According to the theories and approaches of the ecosystem health and the pressstateresponse model, wetland ecosystem health in silting coastal area of Yancheng city was assessed rapidly based on the indicators directly extracted from the GIS and RS data. A model for rapid assessment of wetland ecosystem health was built up, and the spatial distributing rules of wetland ecosystem health in silting coastal area of Yancheng were explored. Following results were obtained that (1) The distribution of the structure of wetland ecosystem health of the silting coastal area of Yancheng are as follows: 22 % excellent area, 67 % generic aera and 11 % poor area. (2) The health status of the district among Wangjiacao Port and Laoba Port is the best, where the value of health index reaches 0.87; whereas the health of the district among Doulong Port and Simaoyou Port is the poorest, where the value of health index is only 0.32. (3) The main reasons, causing the damage to wetland ecosystem, are attributed to the reclamation and pollution of industry and also agriculture.