This study aimed to investigate the characteristics of master teachers in the upper northeastern area to analyze the Buddhist moral code to promote master teachers and propose the model of integrated Buddhist for promoting master teachers in the upper northeastern area. Interview questions and relevant focus group discussions were used as instruments in the analysis, which was performed using a mixed-method design. The data were analyzed by using descriptive content analysis (DCA). Research results revealed that 1) the characteristics of master teachers are divided into three parts: self-improvement, autonomy, and coordination with communities; 2) Buddhist moral code associated with promoting master teachers comprises of Iddhipada 4, Ariyasacca 4, Sa?gahavatthu 4, Kalya?amitta-dhamma 7, Pañcadhamma 5, Brahmavihara dhamma 4 and Aparihaniyadhamma 7. 3) The model integrated Buddhist for promoting master teachers consists of 3 parts: 1) desire to be a master teacher; 2) Buddhist moral code brought to be a practice guideline for achieving 8 codes of self-improvement; 3) development with 3 components: self-improvement, autonomy, and coordination with communities.