Extracurricular physical exercise can not only promote students' physical and mental health development, but also have a positive impact on society. This study identified the relationship between extracurricular sports activities and social integration among college students at a public university in Zhaoqing, China. In collecting the required data, the researchers used questionnaires. The results showed that students enjoyed the extra-curricular sports activities offered by the school. In terms of gender, male college students have a stronger sense of social integration than female college students. Students find themselves highly socially connected in the university community, building meaningful relationships with their peers and gaining a sense of belonging. The study found that students can actively build social connections and integrate into the university community by actively participating in various extracurricular sports activities. On this basis, this study proposes different activities that can be provided to enable students to continuously progress and develop. Actively listen to students' opinions and develop students' enthusiasm for participation. At the same time, rewards and recognition are provided for students who actively participate in extracurricular activities. To expand opportunities and resources for students, so that students more love extra-curricular sports activities.