Teaching competencies are essential for creating and maintaining positive relationships with students and enabling diverse and effective learning environments. Research on teaching effectiveness highlights the crucial role of emotional intelligence skills, which are best developed in person-centered classroom environments. The present study examined the effects of emotional intelligence training on enhancing teaching competencies among student teachers. Using a single-group experimental design, ninety-six student teachers were selected as the sample. The findings revealed that emotional intelligence training had a significant positive effect on improving teaching competencies. Gender and locality did not influence training effectiveness, whereas subject specialization and educational status produced significant differences. The study recommends designing creative teaching-learning resources to support emotional intelligence development and improve classroom teaching effectiveness.