The objective of this one-group pretest-posttest designed study was to investigate the effect of art therapy on depression, anxiety, stress, and satisfaction among the immigrant “Koryo-saram” adolescents. seventeen participants (14-24 years old) were recruited in B city, Korea. Participants were given art therapy session, 90 minutes each, from October 2020 to December 2020. Pre- and post-test measurements of the Patient Health Questionnaire-9 (PHQ-9), Generalized Anxiety Disorder-7 (GAD-7), Perceived Stress Scale-10 (PSS-10), and the Art Therapy Satisfaction Assessment (once each session) were administered. The results indicated the depression (Z = -2.054, p < .05), stress-positive perception (Z = -0.686, p < .05) and participant satisfaction (Z = -3.383, p < .05) of the immigrant “Koryo-saram” adolescents were statistically improved after art therapy. This study showed the following: First, the number of participants who reported “no depression” on the PHQ-9 increased by 41.7% after art therapy, and those who reported “intermediate depression” on PHQ-9 decreased by 23.54% after art therapy. Second, by measuring participant satisfaction as a variable, which has not been measured in previous studies, this study provided basic data for research on art therapy programs specialized in this group of participants. Lastly the correlation between depression and stress-negative perception indicated when stress is relieved through art therapy, depression also decreases.