Research on professional behavior ( professional competence personal social and pedagogic) related to social motivation as factors are very important considering the teacher s role is key in improving the quality of learning. Therefore this study aims to determine the influence of differentiation of social motivation (achievement affiliation and power) to the professional competence to teacher and also to assess how the level of social motivation relationship motivation ( achievement affiliation and power) with the professional competence of teachers. Study found that the differentiation of social motivation especially motivation achievement distinguishes professional behavior of teacher. s social motivativation but the power an affiliation can not distinguish the professional behavior of teachers (sig test 5%). Meanwhile in a study of relationship between social motivation for the behavior of teachers found that professional social motivation to contribute very significantly to teachers professional behavior and to have the largest contribution to the achievement motivation (regression 5%).