The purpose of this study was aimed at the Kinmen cormorant season event and to discuss the effects among ecological tour visiting value, collateral services and added values. Structural equation modeling (SEM) was exercised to framework the hypothesis model of ecological tour visiting value, collateral services and added values and for validity verification. The results revealed that the validity of this model was satisfactory fit after the second revision and the effects among ecological tour visiting value, collateral services and added values were positively close. In order to attract more tourists to join Kinmen cormorant season event, it is suggested that the related authority of this event shall promote this event to different segment of people, publish booklets of related activities, provide professional guide services, focus on safety of pick-up service and traffic, emphasize on sanitation of food and beverage. Moreover, the importance of ecological preservation shall be conveyed to tourists during the event.