This article aims to analyze the legal protection of children victims of domestic violence in Brazil, with an emphasis on protective measures and legal protection instruments provided for in legislation. Child domestic violence is presented as a public health problem and a serious threat to social development, recognized by the World Health Organization (WHO). Considering that this issue is closely linked to the pressing need for awareness and confrontation actions and that it is often neglected by society and rarely comes to the attention of the judicial system, child domestic violence tends to perpetuate itself over the years, going through successive generations. The research adopts an exploratory approach, based on a bibliographical review and theoretical-reflective analysis, aiming to conceptualize child domestic violence, present relevant data on available protective measures and highlight the role of education as a tool to raise awareness and combat the problem, with emphasis on in the Henry Borel Law and its prevention and protection mechanisms.