The purpose of this study is to develop and apply a group art therapy program for improvement of ego resilience of adolescents in multi-cultural families and to show the effectiveness of the program. The development of this program sought effective methods to examine and apply components of ego resilience to group art therapy programs after setting the purpose and goals of the program through a literature analysis of multi-cultural adolescents, ego resilience and a group art therapy. The contents of preliminary program were constructed, corrected and complemented through experts' professional consultation. Twenty middle school student in a multi- cultural family in Chung-buk province were to be studied, composed of ten experimental groups and control groups. The effectiveness of this study was demonstrated by the ego resilience scale and PPAT(Person Picking an Apple from a Tree) test of middle school students before and after the program to analyze the group's follow-up differences as a response test. The results of this study are as follows: First, the effects of the overall ego resilience differed statistically, particularly in positive thinking, problem solving, and close-knit behavior. Second, the PPAT test was statistically significant in both formal scale and the content scale. Therefore, this group art therapy program can be used as a school art treatment program that is useful for the education and counseling of adolescents of multi-cultural families in the Wee Class or Wee Center.