The aim of the article is to analyze the role and importance of pro-defense non-governmental organizations in the state security system. The authors aim to show how these organizations contribute to increasing the level of safety through various educational, training, logistical and operational support activities. The article begins with a discussion of contemporary threats and challenges in the area of security, emphasizing the need for a flexible approach to security strategy and the involvement of various sectors of society, including non-governmental organizations. In the next part, the authors define non-governmental organizations and emphasize their independence from government structures. They draw attention to their role in the democratic system and to the legal framework for the functioning of non-governmental organizations in Poland. Further on, the authors discuss a wide range of activities of non-governmental organizations, including the promotion of physical activity, culture, education, social assistance, health care, local development, protection of animal rights and promotion of gender equality. They emphasise how the diversity of these activities contributes to improving the quality of life of citizens and increasing public awareness. For the purposes of the article, a research problem was formulated in the form of the question: What is the importance and role of pro-defense non-governmental organizations in the state security system? In view of the research problem presented in this way, a hypothesis was formulated: Pro-defense non-governmental organizations play an important role in the state security system, contributing to raising the level of security through education, training, logistical and operational support, and shaping security policies at the local and national level. For the purposes of the study, the method of analysis of literature, legal acts and reliable Internet sources was used.