The development planning system based on participatory governance is a development planning system that involves the active participation of the Barru Regency community in Tanete Rilau Subdistrict, Pao-Pao Village in the process of planning, implementing, and monitoring development results. This research aims to participatory governance in the regional development planning of Barru Regency in Tanete Rilau Subdistrict, Pao-Pao Village. This study used qualitative research methods with descriptive research. Data collection techniques were carried out through observation, in-depth interviews, and documentation. The data were analyzed using the analysis model of Creswell with data collection techniques, analysis, and preparation of the report. The results showed that participatory governance in the regional development planning system of Barru Regency in Tanete Rilau District, Pao-Pao Village, using the participatory governance approach (Fung & Wright, 2001) which consists of Deliberation, Action, Monitoring, Centralised Coordination and Power, School of Democracy and Outcomes, namely the lack of socialization between central government stakeholders to the regions, thus causing GAP or misleading and more massive workshops are needed so that the system in the development planning process can reach an effective point