The rule of law is one of the fundamental principles of administrative law. Every legal and political system needs to apply the principle of rule of law throughout the administrative system for promotion and development. The mentioned principle has been examined from two dimensions, form and substance.In some cases, the rule of law is challenged in terms of form, form, and character of the law, in the sense that the subject law does not have the necessary conditions for government, but in some cases, the rule of law faces challenges from the substantive aspect, and the political and administrative system does not have the necessary conditions for the application and application of the law;ut the main issue is, what are the components and features of the rule of law and what is the guarantee of its implementation in administrative decisions? In administrative law, due to the mandatory nature of the laws, the violation of the aforementioned principle is faced with the guarantee of invalidity of the decision or, in other words, invalidity. In this treatise, the writer will refer to the description of the subject in a descriptive and analytical way.