The purpose of this study was to use meta-analysis to examine the effect of art therapy for families with disabilities in Korea, and to determine the overall effect size, as well as effect size of each variable. A total of 47 papers meeting the meta-analysis criteria were selected, and overall trends were examined, effect size was calculated, and a meta-analysis was conducted using ANOVA. The largest number of studies concerned mothers with disabled children with fewer than 7 members per experimental group and with stress relief as a topic. Mainly, objective examinations were used, and flat media and drawings were used the most by mixing several art therapy techniques. A total of 11 to 15 sessions were held twice a week, with a session time of 61 to 90 minutes. The meta-analysis showed that the overall effect size was large. Among the variables, the mothers showed the greatest effect size, and the large effect size was derived when the number of experimental group members was fewer than 8 to 12, and the topic of study was psychological health recovery with a single technique being used. Sessions taking place weekly for least 2 hours at the time showed the greatest effect size. Weekly art therapy for families with disabilities was found to be most effective consisting of 8 to 12 people, with sessions lasing at least 2 hours. Based on these results, the implications and limitations of this study are discussed.