Quality culture has been mentioned as a tool to help improve quality standards and promote the development of educational institutions. Recently, quality culture has begun to be recognized as an interesting research trend in Vietnam, mainly focusing on higher education. Several studies have applied models/types of building and developing quality culture to educational activities and institutions, but not in the national school system. The purpose of this study is to understand the quality capacity of administrators and teachers of public secondary schools in the Southeast region, of Vietnam through the aspect of quality awareness during education. General education implements educational quality accreditation activities. The research uses quantitative research methods combined with qualitative research methods. The survey sample was conveniently selected randomly, information was collected by questionnaire with 749 managers and 3831 teachers, and by interviews with 22 managers and 40 teachers. Quantitative data were calculated by Cronbach's Alpha to eliminate inappropriate variables. Descriptive statistics calculate percentages, mean values, and standard deviations, and inferential statistics test differences using ANOVA and t-test with 2 independent samples. Data analysis results show differences in quality awareness between the three provinces and between managers and teachers, and the results also show that managers and teachers do not have positive views. teacher on educational quality accreditation activities in secondary schools through two contents "Education quality accreditation takes time and resources" and "Education quality accreditation increases achievement problems in education”. Therefore, the study recommends that leaders at all levels research and promulgate quality policies and create conditions for secondary schools to develop quality; Secondary schools build a set of tools and principles for forming and developing a quality culture to improve quality capacity and develop internal quality resources.