The purpose of this study is to develop a cyber counseling model and evaluate its effects and practical operations. To develop the Cyber Counseling Model, verbal response analysis of chatting counseling, Delphi research, in-depth studies of the individual and group interviews for patients, and focus group interview for cyber counselors were conducted. To evaluate the effectiveness of the model, 10 counselors were selected and assigned for experimental group and comparison group in which they received pre-education respectively. They also estimated the self-efficacy of conducting cyber counseling to assess the practical operation. 60 adolescents who are from middle school were consisted of 3 groups; experimental group, comparison group, and control group, and the researchers conducted and measured Positive Affect and Negative Affect Schedule, Dispositional Hope Scale, and Session Evaluation Questionnaire. As a result, recognized that experimental group’s negative sentiment was decreased and positive sentiment was increased comparing to comparison group and control group. Also, experimental group was highly evaluated for their “Depth” which is that the group considers values of the Counseling experience through the chat counseling comparing to the comparison group. And recognized that the counselors who are from experimental group and the comparison group, and who completed the pre-training of the Cyber Counseling Model had higher self-esteem than who did not complete the training. Significance and implication of this particular research was discussed.