Annotation. A professional identity is experienced in the phenomenological space of personality as a meaning that determines the vectors and success of profes- sional socialization and self-realization. Since the formation of professional identity is non-linear and is often complicated by various semantic barriers, one of the im- portant goals of the institutions of professional education is to recognize the pur- poseful semantic "adjustment" to the profession, during which an individual gets the opportunity to assign in a short time personally significant content of the values of the professional community and inherent value codes and behavioral patterns of this community. The experience of analysis and classification of semantic barriers to the formation of professional identity creates prerequisites for individualization and dif- ferentiation of training and pedagogical actions aimed at professional socialization of students. The authors consider the essence of the barriers of professional identity, based on the typology of J. Marcia, and complement the already existing scientific model with the characteristics of "failures" and "errors" of professional identity.

Keywords: professional identity, barrier of professional identity, failure of pro- fessional identity, mistake of professional identity.