The author examines administrative law and reveals the system surrounding it, the analysis of which allows us to see its features and the scale of the relations regulated by it. The article focuses on elements of the administrative law system such as management law, police law, and administrative justice law. These legal institutions, on the one hand, have their own subject of regulation, which is characterized by public legal content; on the other hand, they complement each other, forming such a phenomenon as modern "administrative law." The author notes that the analysis of the correct definition of administrative law will increase the effectiveness of its study. The main conclusion of this article is that the concept of management dominates in the educational literature on administrative law regarding the subject of this industry. Within the system of administrative law, the norms of management law and police law are harmoniously combined; this is seen in the example of the implementation of administrative and police coercion administrative and police supervision. The police component within administrative law is sometimes called negative law. Still, one should not radically look at the phenomenon of police law, that is, identify it with the police state. Police law may well be an effective attribute of a democratic, legal, and social state. This position is proved by the experience of state-building in a number of countries. Thus, administrative law is designed to improve the efficiency of the state in a variety of aspects to create adequate forms and methods of administrative and police work, both in ordinary and in crisis situations.