The article is devoted to the study of professional crises and their conditioning with the qualities of a person. The article presents the results of an empirical study of the influence of personal qualities on professional crises of employees of trading companies. It is assumed that in the process of professionalisation employees of trading companies go through a crisis of professional growth. Personality qualities influence the degree of dissatisfaction with basic needs and the level of general social frustration. During the crisis of professional growth, different qualities of a person – such as dominance, high intellect, normative behaviour, courage, as well as sensitivity, dreaminess and anxiety, radicalism and nonconformism – are influenced. This influence affects almost all the basic needs and spheres of life of employees of a trading company: the need for security and self-expression, and social needs, which are manifested in discontent with relationships with people, their social-economic status, and social status. A particular influence on the transactions in the group of subjects is provided by such personality traits as anxiety, suspiciousness, and intellect. Depressiveness, bad mood, and gloomy feelings intensify the crisis of professional growth, provoking discontent with relations with colleagues. Due to the developed intellect, employees of trading companies feel the discontent with the level of wages more sharply, which intensifies the crisis of professional development.