Waqf often cannot be utilized by the community for the benefit of worship or general welfare, including the development of education. This is because the designation is not appropriate and the management is not carried out by a credible and professional nazir. This study aims to analyze the influence of Islamic leadership with the variables siddiq (honesty), tablig (conveying), amanah (trust), and fatanah (intelligence) on the management of cash waqf in the development of Islamic education in South Sulawesi. This survey research uses a quantitative approach. The population is 27 higher education institutions managed using cash waqf in South Sulawesi with 4 samples consisting of 105 respondents. Data was collected using observation, questionnaires, and documentation techniques. The instrument used is a questionnaire with a Likert scale. The collected data is managed using the SPSS application and then analyzed using descriptive and inferential statistical analysis techniques. The results of this study indicate that leadership with the variables siddiq (honesty), tablig (conveying), amanah (trust), and fatanah (intelligence) has a positive effect on the managing cash waqf in the development of Islamic education. This means that the higher the respondent’s trust in leaders, honesty, openness, and intelligence of leaders in the management of cash waqf, the better the development of Islamic education in South Sulawesi.