This study aimed to improve students' collaborative character as part of the Graduate Profile dimension through large-ball game learning in Physical Education, Sports, and HeaIth (PESH) for Class VII B at SMP Negeri 8 Banjarbaru. The study was motivated by the low level of students' collaborative character, as reflected in their limited ability to work cooperatively, communicate effectively, and respect group members during the learning process. A CAR (Classroom Action Research) method based on the Kemmis and McTaggart model was employed in this study. The research was implemented in two cycles, each involving planning, action, observation, and reflection. Data were obtained through observations, documentation, and a Likert-scaIe questionnaire.. The findings reveaIed that the implementation of large-ball game learning through handball activities successfully enhanced students' collaborative character. In the first cycle, the collaborative character achievement reached 76.15%, which was categorized as good. In the second cycle, the percentage increased to 92.15%, remaining in the good category but demonstrating substantial improvement. The enhancement was evident in students' increased ability to cooperate, assist one another, and communicate actively within their groups. Therefore, it can be concluded that students' collaborative character in Physical Education, Sports, and Health (PJOK) for Class VII B at SMP Negeri 8 Banjarbaru can be effectively improved through large-ball game learning.