Maharany Fitri* Dr. Chairul Bariah, S.H., M.Hum.** Arif, S.H., M.Hum.*** Child Commercial Sexual Exploitation is a basic violation to the rights of children. These violations consist of sexual abuse from adults and rewards in a form of money or object for the child, third parties, or other parties. Child Commercial Sexual Exploitation can take form in Child Prostitution, Early-age Marriage, Child Pornography, or even Child Sex Tourism. In Principle, International law already legislate a law about Child Commercial Sexual Exploitation. However, Child Commercial Sexual Exploitation is still a never ending problem. Therefore, UNICEF as an Organization who on the job for child benefit felt that it is their responsibility to help Nations all around the world fight Child Commercial Sexual Exploitation. Based on this, the formulations of the problem in this research are: What is the position of the child in International law? How is the protection system against Commercial Sexual Exploitation of Children? What are UNICEF's roles as the International organizations in dealing with the practice of Sexual Exploitation of Children in the world? By using empirical - normative research methods, which combine normative legal approach with several empirical studies, it can be concluded that the children were in accordance with International law are those who are under 18 years old unless, under the law applicable to the child, majority is attained earlier. Children must be protected by the government, local communities and families because they are considered weak and not aware of their rights. Article 34 of the UN Convention on the Rights of the Child states that State parties are obliged to protect the child from all forms of sexual exploitation. UNICEF as an International organization working in the field of children protection felt obliged to assist and cooperate with the countries all around the world to protect children from Commercial Sexual Exploitation of Children and eliminate them. To do so, UNICEF makes an accurate data about Commercial Sexual Exploitation of Children, giving help and rehabilitation for the victim of Commercial Sexual Exploitation of Children, giving the community the right education so they can avoid Commercial Sexual Exploitation of Children, and also helping the government so they by law can handle Commercial Sexual Exploitation of Children that happened in their country.