Marriage initiates the formation of a tiny family, which serves as the foundation of social life. The precursor of communal life is none other than the presence of a family, termed married life, which consists only of a husband, wife, and children. Thus, the issue raised by this study is the legal regulation of government policy regarding the marriage age from a legislative standpoint (A Study of the Religious Affairs Office at sub-district Batam City). Following the execution of the government’s policy on marriage age in the context of legislation, including impediments. Additionally, it addresses the government’s policy on marriage age in the context of legislation. Thus, the purpose of this research is to conduct an in-depth analysis, focusing on the regulation of government policy law on marriage age in perspective. The study will then identify implementation by conducting a legal analysis of government policies regarding marriage age in the context of legislation. Then, consider elements that become barriers or obstacles and solutions to government policy on marriage age in the context of legislation. This study employs a descriptive methodology to collect primary data via field research adopting a normative legal approach. The study’s findings show that when it comes to regulating government policy law on marriage age in the context of legislation, according to a study conducted at the Office of Religious Affairs in Batam City District, the office has implemented chiefly rules following them. However, there are still many barriers in the field. It is particularly pertinent to the local community’s culture. As a result, it is essential to raise community awareness of the reasons and consequences of underage marriage. This case ensures that individuals are more aware of the negative consequences than the positive consequences for children.