In recent years, with the increase in work intensity and the more complex working environment in the construction industry, the problem of job burnout among construction workers has become increasingly prominent. Job burnout not only affects workers’ physical health and work efficiency, leading to more serious safety hazards, but also deeply affects the well-being of construction workers. This study adopts an alternative perspective to explore the impact of professional sports event attendance on construction workers’ job burnout and to analyze the mediating role of leisure spillover in this process. Through a questionnaire survey of construction workers, 641 data points were collected for empirical statistical analysis. The results of the study show that the attention of construction workers’ sports career events can effectively reduce job burnout, and that leisure spillover plays a partial mediating role in this process. This study verifies the positive role of sports career events in promoting construction workers’ mental health through empirical analysis and provides practical references for occupational health management and the mental health development of construction worker groups.