This research collects 58 dissertations and theses from the Electronic Theses and Dissertations System of the National Central Library in Taiwan, focusing on school decision. It then employs the method of document analysis to conduct a thorough investigation based on time, research approaches, research topics, research objects, and research methods. The above investigation reveals some findings of the research: (1)the trend of dissertation of school-related decision is gradually flat. (2) The research approaches focus on administrative decisions of principals and teachers in elementary school. (3)The results showed most of the background information on subjects, for example: gender, education, seniority, and job, about their participant in school decision. (4)Research objects tend to account for the majority of elementary school teachers. (5) The research methods are based on quantitative survey of self-made questionnaires.