Abstract The sub-district performance evaluation on general government affairs implementation in Sleman Regency of 2021-2023 is a study focuses on the implementation of the municipality's duties and functions in the general government affairs of the Sleman district. There are three major issues with the district's implementation of general government affairs. First, the sub-district as a regional government agency that has territorial aspects but does not hold a position as the authority or regional head of the territory and is not a sectoral administrator such as technical government agency or department in the regional government structure. Second, public service authorities in the sub-district sector have been greatly reduced by using digital government platforms. Third, the village's government functions are geographically located within the sub-district area. Among these issues, it is important to know the performance of the general government affairs in the sub-district of Sleman in order to strengthen the strategic role of sub-districts in regional government. The study uses a descriptive-qualitative approach by collecting data on the implementation of general government affairs in 17 (seven) sub-districts in the Sleman Regency during the period 2021–2023, through observations, surveys, and in-depth interviews. Data analysis techniques use describtive analysis methods to describe and analyze research results. The study's findings indicate that the sub-district's performance of the implementation on general government affairs was lower when compared to the performance of the sub-district as government agency. The performance of sub-distric general government affairs is influenced by collaborative leadership and the implementation of mitigation, facilitation, mediation, supervision, and advocacy functions.