Indonesia has one of the highest rates of child marriage under 18 years, with one out of nine girls getting married before their 18th birthday. This is concerning as it reduces girls’ chances of obtaining secondary education and accessing quality work. Additionally, girls who marry before 18 have fewer decision-making powers and are more exposed to domestic violence. Child marriage also leads to physical and mental health issues, such as pregnancy and childbirth. The Indonesian government aims to reduce child marriage rates to at least 8.7 by 2024 and 6.9 by 2030 to meet UN Sustainable Development Goals. However, the COVID-19 pandemic halted the process, forcing children to stay at home and potentially leading to child marriage. This extensive country report aims to highlight the historical and cultural background of child marriage in Indonesia, the existing legal framework, and the international standards required to meet.