The purpose of this study was to investigate the effects of self-regularing ability and positive thinking on school adjustment of middle school students. The subject of this study was 310 male & female middle school students in Busan. The correlation analysis was conducted to see the relationships between self-regulating and positive thinking and school adjustment. Regression analysis was conducted to see the mutual influence through self-regulation, positive thinking as dependent variable and school adjustment as independent variables. The results were as follows: First, the self-regularing ability and positive thinking had a significant positive relationship with each other in relation to school adjustment. In particular, school adjustment and positive thinking was higher than the self-regularing ability of the correlation. Second, it was his ability to adjust the impact of school adjustment. Self-regularing ability of the sub-variables of attention, concentration, showed that interpersonal relationships have positive effects on the school adjustment. Third, positive thinking could have a significant effect on school adjustment. Pursuit of goals and subjective satisfaction of the sub-factors of positive thinking, all significantly affect school adjustment. Pursuit of goals and subjective satisfaction of the sub-factors of positive thinking, all significantly affect school adjustment. Showed greater subjective satisfaction than the pursuit of this goal. These findings was that in today's young people are exposed to varius stress, depression, anxiety and psychological atrophy, positive thinking skills and self-regularting are good factor for them to help adapt these things well for good school life and also make them a further matured, develped adults. Therefore, middle school target of the self-regularting ability and positive thinking improvement program to be developed and utilized methods shoud be sought.