This study synthesized existing individual qualitative literature on art therapists' experience of response art and attempted to provide a comprehensive and in-depth understanding and new insights into response art, with a creative intervention method in clinical supervision. For this purpose, the 7 steps of Noblit & Hare(1988) were adopted from the qualitative meta-synthesis methods. As a result of synthesizing 6 selected papers, 3 high-level concepts and 10 low-level concepts were derived, and detailed contents were ‘the formation of a field for professional advancement beyond language.‘ 'deepening reflective wisdom based on creativity,’ and 'for clients, it is the practice of art therapeutic techniques.’ And the comprehensive concept was ‘the foundation for human internal maturity and development.’ In other words, art therapists naturally trained the core mechanisms for the development of art therapists through response art experience and became more skilled than before in their capacity as reflective practitioners who can applied art therapy theory to practice. This had a positive effect on the client's treatment process and results, and it could be inferred that response art ultimately improved the quality of human life. Based on these research results, the significance and limitations of this study were discussed.