This study focuses on the relations among environmental factors, residents` participations, and integrations with community-based tourism development. A survey was conducted on 102 residents in Namhae Darangyi Village, Hwacheon Togomi Village, and Icheon Buraemi Village. Writers found that exogenous environmental factors except supply factor were perceived by the residents better than endogenous ones. One group who participated in the decision making process for community-based tourism development perceived most of the environmental factors except demand factor better than the other group. The results showed that levels of resident`s satisfaction, expectation, and integration were dependent upon resident`s participation in the decision making process and tourism business.