Ecotourism is becoming increasingly prevalent nowadays. Forest recreation activity a kind of ecotourism, is popular in Taiwan. Tourist arrivals are often a crucial indicator for a recreation area. and knowing the characteristics of tourist arrivals is essential for managers Due to the locations of forest areas that are often remote and in mountainous area, Tourist arrivals are influenced by many factors such as characteristics of the recreation area, transportation accessibility and weather. Taiwan is located on the Pacific Ring of Fire and the major juncture of typhoon path in Pacific Northwest. Because of the special geographic environment, earthquakes and great precipitation accompanied by typhoons are the major natural disasters to Taiwan. These natural disasters are a kind of short-term change and often affect tourist arrivals directly. This study analyzed the characteristic of tourist arrivals to understand different attributes of recreation areas by correspondence analysis and then analyzed the effect of natural disasters on tourist arrivals by intervention model. Through the results, managers can understand the influence of natural disasters well and make proper plans for the future management.