Intellectual security is the main pillar of public security, and this results from the established fact that human behavior is nothing but a translation or application of ideas previously crystallized in the human mind, as it is the immunization that is based on the evaluation of behavior and the prevention of delinquency and crime. The progress of civilization is measured by minds and ideas. If individuals trust their minds and live reassured and secure in their ideas and beliefs, then national cohesion and social peace will be achieved. Religions are the most powerful factors affecting security of all kinds, Especially the intellectual one, and it is necessary to research the basis of its protection therein, specifically in the Islamic religion, which has ensured the maintenance of security at all levels, and its declaration of religious freedom since its existence. With the assertion that human security does not exist simply by guaranteeing the security of his life and the safety of his body, rather it is necessary for him to feel secure in his ideas and beliefs that he believes in, his intellectual and cultural identity that he cherishes, and to guarantee the security of his country socially, economically and politically.In light of the foregoing, we have decided to research the philosophical, legal and legal basis for protecting intellectual security through two studies preceded by an introduction: In the first topic we deal with the legal and legal basis for protecting intellectual security, while the second topic is unique to the basis of that protection in laws, and we will conclude our study with a conclusion that includes the most important of what we will reach from Conclusions, and a set of proposals that we put in the hands of those concerned with them.