This study conducted an attachment trauma treatment program using yoga and mandala drawing on adults with attachment trauma and examined any changes in physical symptoms and self-regulation. Adults with attachment trauma will suffer from chronic depression and anxiety even after becoming an adult, and experience various physical symptoms such as indigestion, panic disorder, and sleep disorder. The attachment trauma treatment program using yoga and mandala drawing in an art therapy approach puts the focus on the physicality, unlike existing research that mainly focuses on cognitive and emotional changes. Research participants with attachment trauma were first provided with an experience of re-parenting where they were warmly cared for physically and emotionally using yoga to alleviate physical symptoms. In addition, it was designed so that research participants could gain new insight into themselves by expressing their images in the mandala. In this study, a program was conducted over 18 sessions on a woman in her 20s with attachment trauma. As a research method, the health of the autonomic nervous system and the activity of the sympathetic and parasympathetic nerves were measured in each session and changes in physical symptoms were investigated. In additi on, changes in self-regulation were examined by analyzing the step-by-step change process of the research participants and the changes in the mandala she drew. As a result of the study, this program was found to be helpful in self-regulation by alleviating the physical symptoms and stabilizing the emotions of research participants with attachment trauma.