This paper on the protection of State information resources in information and telecommunication systems is devoted to the concept of construction and maintenance of the functioning of an infrastructure of protection of State information resources in information and telecommunication systems. This includes the legal basis activity in the frame of State information resources protection in information and telecommunication systems; the necessity of a State security centre existing as the main element of infrastructure of information security in Ukraine; the concept of construction and maintenance of the functioning of an infrastructure of protection of State information resources in information and telecommunication systems; and the interaction of State security centre and executive bodies in the frame of protection of State information resources in information and telecommunication systems.