This study aimed to investigate the effect of group art therapy using tarot cards on the self-efficacy of university freshmen. The subjects of the study were freshmen at a university located in A City. Among those who voluntarily agreed to participate in the study, a total of 10 people, including 5 in the experimental group and 5 in the control group, were selected as the final research subjects. To determine the effectiveness of group art therapy using tarot cards, we compared pre- and post-scores of the self-efficacy scale and analyzed the testimonials of the research subjects in each session. Data analysis was performed using an independent samples t- test. The results of this study are summarized as follows. First, the self-efficacy level of university freshmen who experienced a group art therapy program using tarot cards significantly increased, and significant changes were also observed in the sub-domains of self-efficacy such as confidence, drive, and competence. Second, as a result of qualitatively examining changes in the testimonials of university freshmen who experienced group art therapy using tarot cards, a positive change was found in the college freshmen's self-efficacy. Therefore, in this study, it was found that group art therapy using tarot cards resulted in positive changes in the self-efficacy of university freshmen.