In modern society, interpersonal relationships at the adolescent stage not only have a profound impact on the development of an individual's social skills but also play a key role in his or her future career, family and social life. With the increasing research in education and psychology, adolescents' interpersonal relationship development has become a focus of attention in the fields of education and mental health. The impact of teaching and learning environments and educational strategies on adolescents' social skills and emotional development has become more pronounced, especially in an increasingly complex and diverse society. Therefore, an in-depth exploration of this topic is important for developing more effective educational policies and fostering good interpersonal relationships among adolescents. This paper analyzes in depth the influence of educational environment and educational strategies on the interpersonal development of adolescents, and through a comparative analysis of previous studies, the author finds that the creation of an open and positive educational environment has a positive influence on the promotion of the development of adolescent interpersonal relationships. Educational strategies of cooperation, communication, and content diversity play an important role in adolescents' maintenance of interpersonal relationships. The paper also points out that while existing research provides valuable insights, further research is needed on other factors that may influence adolescents' interpersonal development. The paper concludes with some recommendations for educators and policymakers aimed at creating more effective teaching and learning environments and strategies to promote healthy interpersonal relationship development among adolescents.