The objective of this research is to prove the effect of Anger Adjustment Program on Anger, Idea about Suicide, and School Life among middle school students who have previously attempt to commit a suicide. In order to achieve the objective, the students of H Middle School located in North District of Pusan who have at leat one previous attempt at a suicide and received 62 or above on SIQ were selected after the second examination of students' emotion and behavior. After the selected students were interviewed, twenty 8th graders who would volunteer to participate in the experiment were selected and ten of them were placed to an experiment group and the other ten were placed in a statistical group. The experiment group attended ten fifty-minute sessions, twice a week in the period of five weeks, while the statistical group attended none. To analyze and evaluate the difference between the two groups, ANCOVA was conducted with SPSS Win 19.0 after the data was collected. Mixed Design ANOVA was also conducted to analyze the effect by the group and the time data was collected. After careful analysis, it was observed that the rate of anger decreased significantly among those who participated in Anger Adjustment Program. Moreover, they thought about suicide less than they used to before the program. Finally, they showed improvement in their school life. Thus, it was found that Anger Adjustment Program was effective in reducing anger and idea about suicide and improving school life among the students who have previously attempted to commit a suicide.