The purpose of the present study was to examine the effects of group art therapy for university students on Self-Encouragement and Trait-anxiety. Study subjects are six university students who attends universities which are located in the Metropolitan area. The group art therapy was conducted with the total of 8 sessions, which was 120min. per session a week, from Sep.27 2012 to Nov.22 2012. Study tools were pretested and posttested on the Self Encouragement Inventory between Self Encouragement-Discouragement Inventory and Trait Anxiety Inventory between State-Trait Anxiety Inventory. Data analysis was achieved by SPSSWIN Version 18.0 program using pretest and posttest on the Self Encouragement questionaries and Trait Anxiety questionaries in terms of nonparametric test and Wilcoxon Signed Rank Test. The result are as belows; Group art therapy is not effective on overall Self Encouragement, Cognition and Behavior. But Group art therapy is effective in increasing the Emotion Self Encouragement level(Z= -2.04, p<05) and reducing Trait-Anxiety level(Z=-2.21, p<.05). As a result, Group art therapy is effective on increasing of Emotion Self Encouragement and reducing of Trait Anxiety to university students. Therefore it is possible to be a effective treatment tool for school adjustment and future preparation to university students through Group art therapy.