Abstract: The human safety concept has become an integral part of international relations against the background of the security agenda extension. The research goal of this article is the definition of the main stages of human safety concept formation. The research subject is the human safety concept. The article contains the review of the evolution of the human safety concept and the definitions of human safety. The author considers the implementation of the human safety concept in official documents of national and international level. The research is based on general scientific methods: historical and comparative analysis, the systems approach and the critical method, as well as formal analysis of legal and statutory documents. The modern human safety discourse outlines the following problems: the definitions of a safety referent, the personal safety theory, the basic stages of the concept formation, the experience of countries and international organizations (Canada, Japan, Thailand, etc.). A universally recognized definition of personal safety hasn’t been formulated yet, despite the fact that the UNO promoted the development of a universal understanding of human safety. That led to its loose interpretation and begot the problem of legitimacy of external interference and hampered practical activity in this field. The author concludes that the human safety concept should be comprehensively analyzed, particularly with regard to its development, the structure of human safety, differentiation of human safety from and interaction with other types of safety. The author also finds out that the problem of defining the limits of the human safety concept still exists due to the absence of a unified interpretation. The formation of the concept itself is ongoing. The scientific novelty of the research consists in a comprehensive analysis of the evolution of the human safety concept in international relations which reflects the main stages of formation of this concept and its directions, and in an attempt to define human safety.