The "community as Classroom" program hopes, through enhancing the interaction between schools and communities, to construct resource network of the school and community, to expand the level of participation in school-based programs, and to organize the collaborative school teaching teams to achieve transformation of teaching field. The target is to extend students' learning situations from school to the community context and to convert abundant community learning resources. In this study, "Community as Classroom" is the main theme exploring the school-based organizational change for the field. The researcher participated in the study with the observer's insider perspective, explored the implementation process of high-quality case school restructuring plan, hoped to make comparison with theory and practice through the depiction of qualitative research and, and explored the organizational change case and its community practice, and transformed the situation of resources to summarize specific conclusions and recommendations in the context of the school. For this school organizational change case, through the analysis of transformation and practice of community resources, the important conclusions of this study are as follows: (ⅰ)The community makes elegance everywhere as the inheritage and promotion of native language integrates into the student life, and meets the need of community people. (ⅱ)The community might coexist and prosper with school, as the curriculum planning practices and community resources communicate with each other, and are on the same boat. (ⅲ)Community is as classroom everywhere, implementing the strategic alliance consensus of school communities and achieving the ultimate goal of enhancing the effectiveness of student learning. (ⅳ)The transition deepened within the curriculum, taught and guided the school-based curriculum, and transformed the practice of community resources into the school curriculum.