The purpose of this study was to analyze the background, characteristics, achievements, and limitations of the school support policies of metropolitan and provincial offices of education since 2010, and to explore tasks for strengthening school support. As the main research method, focus group interviews were used for those in charge of planning and implementing the school support policies of offices of education. Through this study, it was found that each office of education tended to implement school support policies in accordance with regional characteristics and policy environments. The main achievements of school support policies were found to be improvement of school satisfaction, policy design reflecting the needs of schools, and substantial reduction of school work. The limitations of school support policies were found to be a lack of resources, limited cooperation and coordination within the offices of education, the convenience-oriented work processing of the offices of education, ambiguity regarding the scope of school support (office of education level), a lack of school autonomy and competency, a lack of teacher commitment to educational activities (school level), and others. Based on these results, tasks for strengthening school support, such as securing resources, reinforcing school autonomy and competency, forming consensus, and building networks are suggested.