The phenomenon of early marriage is common in Indonesia. Early marriage is a marriage with a relatively young age under the age of 16 years. This study aims to analyze the socio-cultural determinants that influence the incidence of early marriage in Baranti Village, Baranti District, Sidenreng Rappang Regency. The design of this study was a cross sectional study design with a simple random sampling technique implemented in Kelurahan Baranti, Baranti District. The number of samples are 102 people. Data collection by interview and questionnaire. Data were analyzed using chi-square analysis. The results showed that the significance of the incidence of early marriage was belief (p-value = 0.044), family role (p-value = 0.013), and promiscuity (p-value = 0.021). So, it was concluded that there was a relationship between belief, family role, and promiscuity towards the occurrence of early marriage in Baranti Village, Baranti District. Suggestions to the sidenreng rappang regency government to be stricter in applying sanctions for violators of the marriage law in accordance with applicable regulations.