This study is intended to verify the effectiveness of the TA group art psychotherapy program on the improvement of peer relationships for local children's centers. Two local child centers within 00 area of Changwon City were selected for the study, and prior examination of peer relationships was conducted after the homogeneity test. The total number of people participating in the group was 24 (12 experimental groups, 12 controlled groups), and the program was carried out once a week, 60 minutes. The pilot group was given a TA group art psychotherapy program and the control group did nothing. To validate the effects, a similar experimental design was conducted and the Wilcoxon Singled-ranks Test validation was used to compare and analyze differences in peer relationship improvements. As a result, there were statistically significant differences between the pre - and post-inspection tests in both the peer relationship and sub-area areas of trust, communication, anger and alienation. The TA group art psychotherapy program reduces social maladies through peer interaction and can be seen to play a positive role in psychological stability and social development through peer relationships. Accordingly, the TA group art psychotherapy program is expected to be used in the relevant schools, institutions and consultation rooms and areas of social welfare practice.