There are many discourses about Korean education and curricular problem in academic community. The very important thing we should pay attention to is about competence-based education. This study focuses the integration of competence-based education into backward design. According to the result of recent research, these two dimensions have been approached separately by irrational tool. Competence-based education emphasized authentic understanding in line of conceptional lens of the competence. It further focuses on enduring understanding as structure of knowledge by backward design and teaching for understanding. This study explores the integrative methods of competence and backward spirit. Competence-based education focuses on improving the uselessness of invaluable knowledge. Backward design aims at authentic understanding. These methods have many similarities in designing schooling. But each of the three parts is separately studied in curriculum studies. From this problem, many researchers suffer from invalid aspect of understanding. The integration of competence-based education to backward design is key factor in reforming school curriculum. In this study, we have explored the integration methods through literature review and philosophical analysis. Competence-based education should proceed to not integrative stance but conflicting tenet from the viewpoint of promoting authentic knowledge education.