The objective of this study is twofold: 1) To examine the current situations, desired conditions, and requirements for participation in quality assurance efforts of small schools under the Office of the Basic Education Commission; 2) To explore developmental guidelines for enhancing the quality assurance practices of these educational institutions. The research methodology involved: 1) surveying to assess the current situations, desired conditions, and essential requirements; and 2) investigating development guidelines embedded in the working processes of three schools with the best educational assurance practices. The sample groups included 385 persons who were school administrators and teachers. Research tools included a survey form, interview forms, and an assessment form, which was verified and approved by nine qualified individuals. Data analysis involved content validation and factor analysis. The statistics also indicated the correctness, appropriateness, feasibility, and utility of the information. The statistical techniques used in the research included basic statistics and the analysis of essential requirements. The findings of the study revealed the following: 1) The current situation of the participation in educational quality assurance efforts of the small schools was rated at a moderate level, with the highest level of the desired conditions. An area of the requirements that was rated with the highest score of development priority was active participation in quality assurance; 2) The developmental guidelines for quality assurance practices in educational institutions encompassed five domains with a total of 16 strategies. The experts' evaluation of these domains indicated a high level of accuracy, while appropriateness, feasibility, and utility were scored at the highest level.