This study is to examine if and how art therapy can help children of family violence improve their emotionally maladjusted behavior, such as depression/ anxiety, attention, and aggression. To do so, pre- and post-tests of K-HTP are used for analysis. The study subject for the study is a third grader in ○○elementary school in Daegu city, the first son of the family with a younger sister. This boy was chosen where and when his sister was attending the nursery school whose director recommend him to me, while the director was giving a counseling session to the boy’s mother who was a victim of family violence. So, there was no close inspection in choosing the subject with objective methods. It simply happened that way because of the director’s recommendation and the mother’s permission. Research instruments are K-CBCL(Korean Child Behavior Check List) for the level of emotionally maladjusted behavior, with which subcategories of depression/anxiety, attention, and aggression are focused when they reach over the score of 70; and pre- and post-tests of K-HTP(Kinetic House-Tree-Person) that are compared and analyzed. After the art therapy program, it is noticed that there has been a significant difference in the child’s behavior indicated by K-CBCL scores. From the comparison of pre- and post-tests of K-HTP, it is known that art therapy has given the child positive changes and stable feelings that in turn help the child improve emotionally maladjusted behavior. That is, art therapy proves to be effective on improving emotionally maladjusted behavior of the children of family violence. As in most programs dealing with children, the programs for child victims of family violence are meaningless without including ‘the main fosterer’ such as parents. It should be suggested, therefore, that further studies on art therapy for children include the art therapeutic program that both the child and the main fosterer or supporter participate together. Key Words : Family Violence, Emotionally Maladjusted Behavior, Art Therapy