Trafficking of children is a form of human trafficking and is defined as the "recruitment, transportation, transfer, harboring, and/or receipt" of a child for the purpose of exploitation. This definition is substantially wider than the same document's definition of "trafficking in persons".
Though statistics regarding the magnitude of child trafficking are difficult to obtain, the International Labour Organization estimates that 1.2 million children are trafficked each year. The trafficking of children has been internationally recognized as a serious crime that exists in every region of the world and which often has human rights implications. Yet, it is only within the past decade that the prevalence and ramifications of this practice have risen to international prominence, due to a dramatic increase in research and public action. A variety of potential solutions have accordingly been suggested and implemented, which can be categorized as four types of action: broad protection, prevention, law enforcement, and victim assistance.
The main international documents dealing with the trafficking of children are the 1989 U.N. Convention on the Rights of the Child, the 1999 I.L.O. Worst Forms of Child Labour Convention and the 2000 .
The first major international instrument dealing with the trafficking of children is part of the 2000 United Nations , titled the . Article 3(a) of this document defines child trafficking as the "recruitment, transportation, transfer, harboring and/or receipt" of a child for the purpose of exploitation. The definition for child trafficking given here applies only to cases of trafficking that are transnational and/or involve organized criminal groups; in spite of this, child trafficking is now typically recognized well outside these parameters. The International Labour Organization expands upon this definition by asserting that movement and exploitation are key aspects of child trafficking. The definition of "child" used here is that listed in the 1989 U.N. Convention on the Rights of the Child which states, "a child means every human being below the age of 18 years, unless, under the law applicable to the child, majority is attained earlier." The distinction outlined in this definition is important, because some countries have chosen to set the "age of majority" lower than 18, thus influencing exactly what legally constitutes child trafficking.