The presence still brings unexpected developments in the security environment and the deep need for changes in thinking about security. The issue of safety guarantee, protection of external borders in order to maintain the territorial integrity is one of the priority tasks of the state. Responding to emerging threats requires permanent identification, explanation of their nature and location, and it should be a continuous process. Measures to ensure the safety are usually arranged in a fairly complicated system. Building security system is aimed at reducing human fears and the fear of what the future brings. Responsibility for the creation of a security system is borne by the state, which is to ensure the viability and freedom to pursue their own interests in concrete terms through the use of favourable circumstances, undertaking the challenges and the fight against all kinds of threats to the entity and its interests. The author presents the characteristics of Polish national security system focusing on its essence, structural models and process management.