The importance of majority is because of that today many political systems of the world, based on majority, use the title of democracy for gaining their legitimacy. The fever of democracy has warmed the global politics so that, in according to David Heald, Almost everyone, left, right and center, claiming to follow the principles of democracy and all types of political regimes from all over the worlds choose the name of democracy for themselves, although there may be great differences between words and deeds.The idea of democracy which is the product of human thought and based on some principles can be studied from different aspects with regard to the principles and foundations of revelation. One of the core foundations of this system is the will of majority and the populace which is regarded as the basis of its legitimacy. Therefore, in this paper, first, a compact and quick look at the position of the majority has been done and then its scope and its place in Islam have been followed.