The ideals of the successful implementation of an eco-community involve several key elements. This study used a literature review to clarify the key factors for the successful implementation of an eco-community and established the influence of these key elements through expert questionnaires. The results of the study showed that the most crucial part of building a successful eco-community is the community group, followed by the partners who assist the community, and finally the assistance and support of the government. The leader of a community plays the most critical role, followed by the community group, and community self-consciousness. In addition, if the community can establish partnerships with experts, scholars, nongovernmental organizations, and nonprofit organizations, and construct a stable autonomous financial system, the eco-community is guaranteed to continue operating.