The important role of positive emotions in adolescent psychological development, particularly in promoting mental health, enhancing resilience, improving overall well-being, and boosting academic performance, is highlighted. Through an analysis of relevant theories and empirical studies, this paper proposes effective strategies for cultivating and promoting positive emotions in educational practice. These strategies include creating a positive classroom environment, integrating positive psychology into teaching methods, addressing individual student needs, and encouraging reflection and self-expression. Future research could further explore the impact of positive emotions across different cultural contexts and their application in education.