Self-cognition and self-acceptance are essential for mental health development and emotion in college students. The study investigated the efficacy of group drawing therapy in improving Chinese college students' positive self-cognition and self-acceptance. It is worth noting that Chinese college students in a collectivist culture have systematic and fluid conceptualizations of the self, such as "self in relation to others" and "self in background." In this study, the intervention group participated in group drawing therapy, and the control group did not participate in any mental health care. Our results demonstrated promising effects in improving the level of self-cognition and self-acceptance among college students. Group drawing therapy was beneficial to the growth-oriented development of college students. Additionally, it may provide an innovative direction for student development professionals and help mental health educators promote self-growth in psychologically disturbed college students.