The following article provides an introduction to the issues of legal and political organization of the Roman provinces in the area of conquered territory in the time of the Roman Empire (I-III A.D). It outlines the administrative division of the empire, the relationship between them and Rome. An efficiency and well-organized management of the huge land using structured magistrate, allowed the Romans to create a world Empire which prevailed over a thousand square kilometers. The most important tasks of princeps was to ensure external and internal security of the Empire by structured and efficiency administration, as well as a guarantee of the proper/ correct jurisdiction. Not without significance was the tax collection which enriched the imperial treasury and testified to the power of the ruler. The Roman state was based on provinces, colonies and municipalities, where the last one were the primary form of local autonomy. The organization of official structure was largely modeled on the system of the Republican Rome, while respecting local traditions at the same time. Although their dependence, the residents still had full decision-making in their own affairs.