Abstract: The ocean was a complex ecosystem. Rapid and effective identification of the current status of protected areas were the basic work for conservation and rehabilitation efforts. This study was based on Haizhouwan national marine park, a national marine protected area in Jiangsu. According to the natural features of the landforms, a neritic landform vulnerability index system was established, including four indices and 13 factors.The indices consisted of the occurrence characteristics, the influence factors, the disaster background and the human intervention. With the comprehensive consideration of the existing research results, the factors valuation criteria were established for the assessment of landform vulnerability. This study conducted analytic hierarchy process for the assessment results, so as to get the vulnerability index of Qinshan Lsland, Bamboo Lsland, the Longwang estuary spit, and the north shoreline of Lian Island, which were 0.58、0.62、0.48、0.58, respectively. The stability of Bamboo Island was the best, which objectively reflected the current situation of each protected object. The results of the study can provide references to the protection and management of special landscape. The evaluation model and index criteria could be applied to other protected landforms.