In the evolving landscape of foreign language education, the crucial role of teacher emotional support in fostering student engagement has become increasingly evident. A recent comprehensive study delves into the intricate psychological pathways through which this support translates into enhanced learning engagement among English as a Foreign Language (EFL) university students. The research, conducted with 442 undergraduates in Hainan Province, China, highlights the interconnectedness of teacher-student relationships, students’ fundamental psychological needs, and their enjoyment of the learning process. Key Findings Unveiled: A Multi-Layered Approach to Engagement The study, rooted in Self-Determination Theory (SDT) and Control-Value Theory, reveals that teacher emotional support (TES) directly and indirectly influences EFL students’ learning engagement (LE). While a significant direct positive effect of TES on LE was observed (β = 0.258), the research underscores that the most profound impact stems from indirect pathways. At the forefront of these indirect mechanisms is the satisfaction of basic psychological needs (BPNs). The findings indicate that TES significantly predicts BPNs satisfaction (β = 0.581), which, in turn, positively correlates with LE (β = 0.343). This pathway accounted for the largest proportion of the indirect effect, suggesting that teachers who provide warmth, care, and responsiveness are instrumental in fulfilling students’ innate needs for autonomy, competence, and relatedness, thereby fostering deeper engagement. This aligns with the core tenets of SDT, which posits that the satisfaction of these fundamental needs is essential for intrinsic motivation and sustained effort. Furthermore, the study identified foreign language enjoyment (FLE) as another significant mediator. TES positively influences FLE (β = 0.255), which then contributes to LE (β = 0.239). This pathway, while less potent than the BPNs satisfaction route, highlights the role of positive emotions in driving engagement, consistent with Control-Value Theory. Enjoyment, cultivated through supportive teaching, can broaden students’ cognitive and motivational resources, encouraging greater participation and persistence. Crucially, the research validated a sequential mediation model, demonstrating that BPNs satisfaction acts as a precursor to FLE. The pathway from TES to BPNs satisfaction (β = 0.581), followed by BPNs satisfaction to FLE (β = 0.343), and finally FLE to LE (β = 0.239) was empirically supported. This sequential effect (effect size = 0.048) suggests a dynamic process where supportive teaching first fulfills students’ psychological needs, creating a foundation for enjoyment, which then further fuels engagement. The Importance of Teacher Emotional Support in EFL Contexts The significance of teacher emotional support in EFL learning cannot be overstated. Unlike in contexts where the target language is widely spoken, EFL learners often face unique challenges, including anxiety about making mistakes, fear of evaluation, and limited opportunities for authentic communication. In this environment, teachers play a pivotal role in creating a safe and encouraging atmosphere that mitigates these anxieties and promotes risk-taking—essential for language acquisition. The study’s findings reinforce previous research that has consistently linked teacher support to positive educational outcomes. Meta-analyses encompassing numerous studies have confirmed the robust positive correlation between teacher support and student engagement, with emotional support emerging as a particularly influential factor. This research extends this understanding by detailing the specific psychological mechanisms at play for university-level EFL students. Theoretical Frameworks Guiding the Research The study draws heavily on two influential psychological theories: Self-Determination Theory (SDT): Developed by Ryan and Deci, SDT proposes that individuals are intrinsically motivated when their basic psychological needs for autonomy (feeling in control and self-directed), competence (feeling effective and capable), and relatedness (feeling connected and belonging) are met. In the context of education, teachers who foster these needs through their supportive behaviors are more likely to enhance student engagement. Control-Value Theory: This theory, advanced by Pekrun, explains how students’ emotions in academic settings are influenced by their appraisals of control (their perceived ability to influence outcomes) and value (the perceived importance of the learning task). Supportive teachers can enhance perceived control and value, leading to positive emotions like enjoyment, which in turn drive engagement. By integrating these theoretical perspectives, the study offers a comprehensive framework for understanding how teacher emotional support fosters learning engagement. Methodology: A Rigorous Examination The research employed a cross-sectional design, surveying 442 non-English major undergraduates from three universities in Hainan Province. The participants, primarily freshmen and sophomores, represented a diverse range of academic disciplines, enhancing the generalizability of the findings within similar educational settings. Data were collected using validated self-report questionnaires assessing teacher emotional support, basic psychological needs satisfaction, foreign language enjoyment, and learning engagement. Robust statistical analyses, including path analysis and bootstrap analysis, were utilized to test the hypothesized sequential mediation model. Confirmatory factor analyses confirmed the psychometric properties of the measurement scales. Implications for Educational Practice The study’s conclusions offer valuable insights for educators and policymakers aiming to enhance EFL learning experiences: Prioritize Teacher Emotional Support: The findings unequivocally demonstrate the importance of fostering strong, supportive relationships between teachers and students. Investing in teacher training programs that emphasize emotional intelligence, empathy, and responsive communication is crucial. Cultivate Basic Psychological Needs: Educators should actively create classroom environments that nurture students’ sense of autonomy, competence, and relatedness. This can involve offering choices in learning activities, providing constructive feedback that builds confidence, and fostering a sense of community and belonging. Leverage Foreign Language Enjoyment: While not the primary driver, enjoyment plays a significant role. Teachers can enhance enjoyment by making learning activities engaging, relevant, and positive, thereby creating an emotional connection to the subject matter. Integrate Motivational and Emotional Strategies: The sequential mediation model highlights that a holistic approach is most effective. Strategies that first address students’ fundamental needs and then build upon that foundation to cultivate positive emotions are likely to yield the greatest impact on sustained engagement. Limitations and Future Directions Despite its significant contributions, the study acknowledges certain limitations. The cross-sectional design prevents definitive causal claims, suggesting the need for longitudinal or experimental research to further solidify the causal pathways. Reliance on self-report measures also opens the possibility of common method bias, which future studies could mitigate through multi-method approaches. Furthermore, the sample, while diverse in majors, was predominantly female, prompting a call for future research with a more balanced gender representation to fully explore potential gender-based differences in these psychological processes. Conclusion: A Pathway to Enhanced Learning In conclusion, this research provides compelling evidence that teacher emotional support is a vital catalyst for EFL learning engagement. By fulfilling students’ basic psychological needs and fostering foreign language enjoyment, teachers can create a powerful cascade effect that leads to deeper involvement and improved academic outcomes. The validated sequential mediation model offers a nuanced understanding of these complex psychological mechanisms, providing a roadmap for educators to cultivate more supportive, engaging, and ultimately more effective EFL classrooms. The findings underscore that a humanistic approach, grounded in psychological principles, is fundamental to optimizing the learning journey for every student. Post navigation A study on the differences in social-face sensitivity and conspicuous consumption tendency based on sports consumers’ impulse buying tendency: focusing on Generation Z