This study is aimed to develop a group counseling program to promote the self-esteem of children from multicultural families and test its effects. To this end, an 11-session program was developed based on the reviewed literature on self-esteem improvement programs. The program was characterized by activities designed to facilitate interactions among children and increase their participation, encourage them to have a positive viewpoint of a multicultural environment, and accumulate success experiences. The program was applied to five fifth-graders from multicultural families twice per week. Its effects were tested with the self-esteem inventory and investigator's observation on participants' behaviors in each session. Based on the results of the study, the developed group counseling program was effective in promoting the self-esteem of children from multicultural families. Also, it showed that the program could be used in lessons at schools where it was difficult to secure counseling hours with children.