The purpose of this study is to see if art therapy is effective on improving atterntivenes and interpersonal relalions of a child with ceretral paralysis. The study subject is an eight year old boy, who was diagnosed as ceretral paralysis of fifth degree when three years old, showing marute difference in the size of hands and feel due to hemiplegia on the right half of his body. The subject has shown behavior of frequent fight or hitting because of negative thought on himself and other around, been easily distaracted and regressive, and had no good interpersonal relations. Research instrucents used in this study are K-CBCL pretest and posttest to show changes in the levels of problem behavior for the ten K-CBCL subcategories and HTP for pretest and posttest to exhibit psychological changes on attentiveness and interpersonal realtionship. According to the data obtained from pretest and posttest of K-CBCL and HTP. K-CBCL subcategories of attentiveness, social prematurity, and aggresion. The result from the study are as follows. First, art therapy has a positive effect on the subject's attentiveness, Second, art therapy shows positive changes on the subject's interpersonal relations. Third, the change mode of attentiveness and interpersonal relationship goes with different stages of art therapy. Key Word : Cetebral Paralysis, Interpersonal Relalionship, Attentiveness