Teachers’ social–emotional competence is crucial for promoting a positive learning environment to the students. However, the research on teachers’ social–emotional abilities is very limited. This study examined the relationship between emotional abilities and self-efficacies and empathy among teachers, hypothesizing that teachers’ self-efficacy belief mediates the relationship between the other two variables. We found a strong positive association between the three social–emotional competencies, and direct and indirect (via teachers’ self-efficacy) effects of emotional self-efficacy on empathy. These results suggest that teachers’ belief in the ability to regulate their emotions contributes to teachers’ empathy in both ways.