Every society has a kind of system of government that in order to manage and policy, it is necessary to solve the problems of society according to a set of principles and laws and guide the living standards of the people towards the enjoyment of welfare and prosperity. Accordingly and considering the importance of this issue, in this study, which was done by qualitative method and using library studies and field research, three important points were considered in this qualitative and comparative study: First, the need to establish an Islamic state and the need to maintain Islamic power to achieve Islamic goals, perceptions and principles. The second is the duty of the people, such as the one who controls the government and the scholars, who must preserve the legislation of Islam and implement the Islamic laws and the third is the way to establish the Islamic state and religious legislation.
