In recent years, the sport of boxing has become a popular trend, and with the promotion of sport psychology, the leadership style of coaches plays an important role in influencing the mental aspect of athletes. Boxing is an exercise that combines intensity and relaxation, which not only improves the strength of the muscles and bones but also contributes to the mental health of people and brings them a sense of happiness. In this study, we investigated the correlation between boxing athletes’ perceived positive coaching leadership, sports enthusiasm, and happiness. In this study, 300 valid questionnaires were collected from boxing athletes and then analyzed by statistical software. The results showed that positive leadership had a significant positive effect on sports enthusiasm; sports enthusiasm had a significant positive effect on happiness, and positive leadership had a significant positive effect on happiness.In conclusion, the study has discussed the significance of sport psychology and well-being. The study is expected to contribute to the related literature and offer suggestions for future studies in sports science and management.