This study aims to determine the Organization of Diving Sports Branches at the Indonesian Diving Sports Association in Central Java Province. This research is a qualitative interpretative research. Data collection techniques using interviews and document analysis. In this study, the chairpersons, administrators and athletes of POSSI Central Java were used as samples. Data analysis in this study has 4 stages, namely: data collection stage, data reduction stage, data presentation stage, conclusion drawing stage. Based on the results of the research that In addition, POSSI Central Java's efforts and commitment in developing diving can also be linked to sport development theory. They organize various activities and trainings to improve the skills of athletes and coaches, as well as actively holding championships and recreational events for the community. A holistic approach that includes coaching young athletes and underwater environment conservation campaigns also reflects the organization's efforts to develop diving sports sustainably. Research on sports development strategies and the role of organizations in encouraging community participation in sports can also be a reference to discuss the success of POSSI Central Java in developing diving sports in the region. Based on the results of the research and the results of the data analysis conducted, it shows that the Organization of Diving Sport Branch POSSI Central Java Province: POSSI Central Java Province shows a well-organized management structure, with experienced and competent leaders. This leadership structure provides a strong foundation for the development of diving in the region. The history of the development of diving and the innovation of scuba equipment are important parts in developing modern diving. POSSI Central Java also shows effort and commitment in developing diving sports with a holistic approach that includes the development of young athletes and underwater environmental conservation campaigns.