Аннотация:The XXI century’s priority is to identify potentially “weak” links in human health, which allows changing your diet, habits, physical activity in time, and choosing a personal schedule for taking vitamins and trace elements. A special mission in this context belongs to the average medical staff, represented by several generations of specialists. The aim is to develop the concept of “human capital of a medical institution” and criteria for its evaluation on the example of nursing staff. Materials and methods. Audit of work plans of chief nurses, councils of nurses, a sociological survey of 405 nurses to identify professional burnout, and respondents‘ analysis of the environment of a medical institution that promotes the development of nursing competencies from vertical and horizontal interaction. Results. Authors develop definitions of the concept of “human capital of medical institutions and proposed tools for its assessment. Conclusion. The environment that includes the organization of the workplace; management aimed at creating vertical and horizontal systems of interaction; motivation that contributes to the professional and personal growth of nursing staff determine the development of the human capital of medical institutions.