Objectives: The study aims to clarify the concept of mental health from an Islamic perspective, explaining the meaning of intentional measures, and the importance of the child’s mental health in accordance with the purposes of sharia, and clarify the treatments developed by the purposes of sharia in order to support the mental health of children.
 Methods: The study is based on two approaches; the inductive approach: by extrapolating and following the legal purposes in the rulings related to the child and enhancing his/her mental health, and the analytical approach: analysis of the legal texts of the Qur’an and sunnah, in addition, the branches of jurisprudence.
 Results: The necessary legitimate purposes have a direct role in supporting children’s mental health, that the three approaches to mental health: preventive, developmental, and curative, are consistent with the purposes of legitimacy in several places, and that the preventive approach meets the legal rulings based on preserving the necessities to preserve existence, while the therapeutic approach meets the legal rulings that work to preserve the necessities from the side of nothingness, and the Islamic approach achieves the fulfillment of the four health aspects: spiritual, psychological, social and biological.
 Conclusions: The necessity of paying attention to the provisions of the child’s mental health, study and application, by adding relevant educational material to Islamic education courses in schools, and setting up mandatory educational courses for those who are about to marry, aiming to raise awareness of the child’s mental health from a legal perspective.