The purpose of this study was to examine the influence of social skills training program on friendship, self-esteem and social skill of externalized children. The program consisted of 8 sessions of 60 minutes per session, 2 days a week, for 4weeks. The result of the study was social skill training program will affect children’s friendships and self-esteem positively and it will partially affect social skill positively. Key words : social skill training program, friendship, self-esteem, social skill *