This study aims to increase teacher commitment to Organizations with the enhancement variables of Decision Making, Organizational Culture and Interpersonal Communication both individually and together with the dependent variable. The sample selected amounted to 165 teachers in District Merangin High School teachers. This research uses Mixed Sequential Explanatory Method. The results show (1) Decision Making with Commitments to Organizations produced a correlation of determination = 89.1% (2) Organizational Culture with Commitments to Organizations with a correlation of determination = 81% (3) Interpersonal Communication with Commitments to Organizations having an effect of 63.3%. Decision Making, Organizational Culture, and Interpersonal Communication together with Commitments to Organizations have an impact of 89.5%. The results of this study are also reinforced by the results of qualitative research where all factors have almost the same effect.