This study was conducted in order to provide a structural model of social-emotional competence based on psychological capital with the mediation of career motivation among primary teachers. The correlation method was applied in this cross-sectional research. The statistical population of the present study was consisted of all teachers who were teaching in the elementary schools of Tehran in 2021-2022 and among them 350 people were selected by multi-stages cluster-sampling method. Psychological capital (Luthans, 2007), career motivation (Robinson, 2004) and social-emotional competence (Boyatzis, 2007) methods were applied which had acceptable validity and reliability. SPSS-V23 and Lisrel-V7.8 software were applied in order to analyze the data. Structural equation modeling was used to respond to the research hypotheses. The research findings suggested that psychological capital has a direct effect on social-emotional competencies of elementary teachers (p<0.05). Psychological capital has an indirect effect on social-emotional competencies of primary teachers (p<0.05). Also, the results showed that the indirect effect of psychological capital along with social-emotional competencies mediated by career motivation was confirmed by 95% confidence. Therefore, social-emotional competencies can play a better role in increasing their career motivation through making psychological capital among teachers.