Coastal wetlands are important resources. Many developed countries have actively promoted coastal wetlands ecotourism in order for the public to understand the importance of coastal wetlands. The key to the successful promotion of coastal wetlands ecotourism lies in finding out their appeal. In order to achieve this research purpose, this paper is divided into several stages. First, through literature review and expert interviews, coastal wetlands ecotourism related appeal candidate factors were collected. Then, through the Fuzzy Delphi Method, the important factors were filtered. Finally, through the Fuzzy Analytic Hierarchy Process, the relative weights of the related factors were estimated, and a hierarchical structure also can be established to evaluate appeal on coastal wetlands ecotourism.