The concept of national security is considered one of the most important concepts of foreign policy and theoretical schools in the field of international relations. Each of the theoretical schools in connection with the concept of national security have explained this concept by using various objective and subjective analytical approaches. The different layers of national security are other important fields of study that have been discussed and investigated by political science researchers. The Supreme Leader of the Islamic Revolution has put forth a special point of view in connection with the concept of national security in various statements. In the present study, the authors seek to explain the different aspects of the concept of national security in different theoretical schools and the Supreme Leader of the Islamic Revolution. The question of the upcoming article is, what is the view of the Supreme Leader of the Islamic Revolution in relation to the concept of national security and what are its dimensions? In response to the above question, the following hypothesis is proposed: the view of the Supreme Leader of the Islamic Revolution in relation to the concept of national security is based on his pluralistic view of this category and has different dimensions and layers of software and hardware. The research method of this article is descriptive-explanatory and the method of collecting sources is documentary.