The recently increased standard of living in Taiwan, along with advances in medical care, has gradually increased the longevity of the Taiwanese population. The senior travel market will become an important segment in the future economy. The purpose of this study is to explore the travel service needs of seniors. This study used the service experience engineering (SEE) approach to explore the travel service needs of seniors using contextual inquiry of senior's travel behavior. Fourteen seniors were invited to participate in this research. The result of this study will provide the travel industry with ways to improve travel service in the future.