The purpose of this study was to examine the effects of group art therapy on maternal parenting stress and self-efficacy. The subjects of the study included 16 parents of elementary school students who participated in a group art therapy program offered at B Education Center, Pusan. Eight parents who wanted to receive parental education were allocated into an experimental group, While the other eight parents were regarded as the control group. Mothers in the experimental group participated in the group art therapy program which discussed parent education theories. This Program was composed of 17 sessions, performed once a week for one and a half hours. Research tools employed included parent stress test and parent self-efficacy test. The following results were obtained: Group art therapy was found to bring about a statistically significant decrease in parenting stress. Group art therapy was also found to bring about a statistically significant increase in parent self-efficacy. These results suggest that a program which integrates various parents education theories, within a group art therapy setting, can become an effective parent education tool which decreases maternal parenting stress and increases parent self efficacy.