The article is devoted to the study of the organization of lifelong learning process as a condition for the individual’s successful career development. The importance of the accession of the Republic of Kazakhstan to the European educational space is determined. Continuity of the education process, today, is one of the basic principles in the educational policy of Kazakhstan. The article presents the characteristics of such concepts as «formal education», «non-formal education», «informal education», according to the special terminology of UNESCO (formal education is a process of acquiring knowledge that takes place in a well-organized and hierarchically ordered context, culminating in the issuance of a state sample; non-formal education, in turn, is characterized by the acquisition of knowledge outside the specialized educational space; informal education is an individual human activity aimed at the cognitive process and does not always have a specific result). The article proves the need to merge formal, non-formal and informal education, which, in turn, makes it possible to prepare a person for life in a rapidly changing environment and ensure full-fledged career development of the individual, preserving his individuality, and satisfying his career and life needs.