The aim of the study was to explore indigenous community residents' perceptions of tourism impacts. Based on the related research theories and methods, the study analyzed the relationships of residents' demographics, degrees of contact with tourists, community attachment, tourism planning participation and personal economic reliance on tourism, to five aspects of tourism impacts: social and cultural, economic, crowding, environmental, and communal. The research subjects were adult residents of Saviki community, situated within Ali-shan of Chia-yi county in Southern Taiwan. Due to the small population, all the households of the community were selected. A 4-page, semi-structured questionnaire was utilized and distributed to the households in person. The data collection yielded 145 valid responses. The results showed that, of the demographics, length of residence in the community was the most salient factor in influencing residents' perceptions of tourism impacts while some of other demographics, such as occupation, family life cycle, personal income, and education, also had some bearings on the impacts. In addition, community attachment, tourism planning participation, and personal economic reliance on tourism were also associated with tourism impacts significantly.