This study was conducted based on the premise that children suffering from parents' divorce require psychological intervention. The aim of this study is to reduce children’s depression, enhance their self-esteem and change their language and behavior (such as biting their finger nails) by providing art therapy for children who exhibited depression and low self-esteem after their parents' divorce. The target of this study was a 6th grade boy at an elementary school in “D” city, Jeollabukdo, who was living with his mother and his twin brother due to his parents' divorce. During the art therapy his parents’ divorce was in legal process. The program was carried out at E art therapy institution from March 2, 2009 to June 22, 2009. The therapy session was held 16 times for 50 minutes once a week. Above all, to determine the change in depression and self-esteem, the Korean Children's Depression Inventory, self-esteem index, House, Tree, and People (HTP) drawing test, self-esteem change of each section so on were analyzed before and after the therapy program. The results for the gradual change process such as the child's language, behavior (biting his finger nails) and so on were the following: First, the depression of the child from the divorced family decreased by participating in the art therapy program. Second, the self-esteem of the child from the divorced family was enhanced by performing the art therapy. Third, the art therapy has significant effects on the language, behavior (biting his finger nails) and the gradual artistic expression change process of the child from the divorced family. For depression change, although the CDI score was 26 points which correspond to serious depression in the pre-test and higher score was obtained in the items related with depressive emotion, and on the interpersonal relationship trouble, the score decreased to 13 points after providing the program. For self esteem change, general self esteem, especially in society and family improved to 11 and 12 points respectively. For language, behavior (biting finger nails) and gradual artistic expression change process, his ability to express his thoughts and emotions in the artistic activities improved, his biting finger nails disappeared, and his expression ability increased. These results show that art therapy program is useful in decreasing the depression and improving the self-esteem of the child from the divorced family and is helpful in minimizing his biting finger nails habit and in improving his artistic expression ability.