The purpose of this study is to develop Questioning training behavior as a measure to enhance prospective early childhood special teacher’s linguistic interaction ability and to examine its effect. In this study, 13 junior university students majoring in early childhood specia1 education at four-years course university A located in city B This study was to execute the program with 20 sessions in order to train the Questioning suggestion for the prospective early childhood special teachers for three months. After the research results this program was effective to irnprove the capacity of verbal interactions for the students as the research subject matters