The functioning of the health care system is undergoing reform, which requires a detailed study of its formation and functioning at the current stages. The authors conduct an analysis of the organizational structure of the health care system, including levels of management, medical facilities, funding, and human resources. The article examines the organization of management levels in the health care system of Ukraine, including the Ministry of Health, regional and local governing bodies, and medical institutions at the level of cities, villages, and regions. The role and functions of each level of management, their interaction and responsibility in regulating and coordinating the activities of the health care system are described. The financing of the health care system in Ukraine is also analyzed, including sources of financing, mechanisms for the distribution of funds, financial stability, and challenges faced by the health care financing system in the country. The article examines in detail the organization and functioning of medical institutions in the health care system of Ukraine, including hospitals, polyclinics, dispensaries and other medical institutions. The authors describe the role and functions of various medical institutions, their interaction and the organization of the provision of medical services at different levels of the health care system. In addition, the personnel potential of the healthcare system of Ukraine is considered, including personnel resources, training and qualification of medical personnel. Describes the role of medical personnel in the health care system, including doctors, nurses, pharmacists, and other health workers. Challenges and prospects in the field of development of personnel potential of the health care system in Ukraine are analyzed. Attention is drawn to the challenges and prospects of reforming the health care system in Ukraine, including the role of regulation, financing, organization of medical facilities, and development of personnel potential. The authors draw conclusions about the need for further efforts to improve the functioning of the health care system in Ukraine, in particular by expanding access to medical services, improving the quality of medical care, effective use of financial resources, and development of human resources.