This study aims to assess the vulnerability and risk of the coastal areas of northeast Taiwan to abnormal oceano-graphic phenomena. Considering the indexes of three coastal vulnerability dimensions, included the man-made facilities, environmental geography, and social economy, adopted analytic of hierarchy pro-cess (AHP) is used to analyze the vulnerability of these coastal areas to disasters caused by climatic changes. Among the areas with high coastal vulnerability to climatic changes, six towns had the highest coastal vulnerability and four had the highest relative vulnerability. Areas with lower disaster risks were found to be increasingly vulnerable to disasters caused by climatic changes as time progresses.