The purpose of the article is to determine and substantiate the structure of professional readiness of future specialists in social work to provide a complex social services for the formation of vitality. Research methods applied: the analysis of scientific publications on the problem of structuring the readiness of future specialists in social work for professional activity and generalisation of the structure of professional readiness to provide a to provide a complex social services for the formation of vitality. Various scientific views and approaches to understanding the structural components of professional readiness have been identified. The article analyzes the content and features of the professional readiness of future social work specialists for the provision of complex social services for the formation of vitality. Based on the analysis of the works of scientists in various fields, the essence of the concepts "readiness" and "professional readiness" was considered. Professional readiness is defined as a complex characteristic of a person, which consists of professional and personal qualities necessary for the successful implementation of professional activities. The professional readiness of future social workers presupposes the presence of a complex of knowledge, abilities, skills, qualities, abilities, and professional orientation, which contribute to the successful realization of a specialist in the social sphere in professional activity. Within the framework of the study, the structural components of the professional readiness of future social work specialists to provide complex social services for the formation of sustainability are revealed, analyzed, and substantiated: motivational-value, cognitive-content, operational-active, personal-psychological, and reflective-evaluative components.