The purpose of this study was to ascertain the effects of Art Therapy on a depressed adolescent\' s depression and school life. Art Therapy helps depressed adolescents to cope with emotional and social problems by themselves which they face in their home and school Art Therapy enables depressed adolescents to adjust their conflict. to express their suppressed desires actively, and eliminate their improper action. Investigation and research focused on the following: 1. What effects does Art Therapy have on a depressed adolescent\' s depression? 2. What effects does Art Therapy have on a depressed adolescent\' s school attitude and school adjustment? A seventeen year old girl who was diagnosed as suffering from depression was selected as the subject for this study. The art therapy program devised for this research was carried out once a week with a total of 17 trials (60 minutes per triaI). The activities of the subject in each session were observed and analyzed Kinetic School Drawing. School Attitude Measure and The Flynn School Adjustment Scale were employed as tools of measument before and after the art therapy sessions and the results of the measuments were compared and analyzed. The acquired results of this reseach indicate the following: 1. Art Therapy 10 wers a depressed ado1escent\' s level of depression. 2. Art Therapy improves a depressed ado1escent\' s school attitudes and adaptability to school life. Through a series of Art Therapy sessions. the subject of this study was able to express her deep emotions. obtaining the effect of catharsis. She has also begun to think positively through introspection. producing less problematic, symptoms. Thus this study contributes to affirm that Art Therapy brings beneficial effects on depressed adolescents\' depression and adjustment to school life.