This study was to explore the cognizance of special education teachers on an honorable-failure. 15 teachers were subjected FGI two times for this purpose. Interviews were conducted to analyze the teachers’ perceptions based on the experiences and the cases of successes and failures. Collected data of shared experiences and cases among the participants were investigated. As a result, 4 ultimate themes and 21 sub themes were drawn. The 4 subjects are as followed: (1) individual variables and (2) external variables affecting successes and failures, (3) the cases of the honorable-failure experienced by special education teachers, (4) efforts to overcome an honorable-failure. In the conclusion, procedures of becoming a good teacher, after overcoming an honorable-failure, were examined based on the analysis of faithful, but failed teaching experiences of special education teachers and reflective thinking about those experiences. In the discussion, supportive measures for a teacher who have a ‘sincerity’ to become a competent and great special education teacher in the field were suggested.