The purpose of this study is to examine the impact of amenity perceptions of long-stay tourists on tourism satisfaction and behavioral intention. As long-stay tourists stay in a certain area for a certain period of time and engage in tourism behaviors, they are likely to strengthen their relationship with the area and develop into a settled population. Therefore, we set up amenities that represent local characteristics as spatial resources, and examined how long-stay tourists perceive the amenities in Jeju, and how their tourism satisfaction and behavioral intentions change according to their perceptions of the amenities. To achieve the objectives, a survey was conducted among long-stay tourists in Jeju during the month of April 2024, and 230 idle copies were obtained. The results of the empirical analysis showed that first, amenity factors have a significant effect on tourism satisfaction. Among the amenity factors of environment, convenience, and culture established in this study, environment has the most significant effect on satisfaction. Second, tourism satisfaction has a significant effect on behavioral intention. These results have academic implications for the development of a grounded theory of long-stay tourists. In addition, given that local amenities have a significant positive effect on tourism satisfaction and behavior, identifying the amenity preferences of long-stay tourists can be used as basic policy data for attracting a permanent population to a region.