The article is devoted to the research of self-appraisal of future specialists in the conditions of professional studies. It is found out, that during professional studies a professional self-appraisal becomes a significant partial manifestation in the general process of self-evaluation young people. Selected and investigated the dynamics of self-appraisal components of specialist such, as a self-appraisal of professional knowledge, self-appraisal of professional abilities and skills, self-appraisal of professional reasons and persuasions, self-appraisal professionally meaningful personality qualities. Future lawyers, psychologists and teachers were participated in the ascertaining research (N=589). It was established that students appraises their professional competence more critically and objectively. Also it was found, that future specialists exaggerate their professional persuasions and professionally meaningful personality qualities. А direct correlation was established of the level of students’ professional becoming, professional self-appraisal and self-appraisal of professional readiness. Future psychologists have the most contradictory professional self-appraisal. An external factor of the formation of students’ professional self-esteem is dominated. It was found, that student’ professional self-appraisal is formed spontaneously. The need of optimization professional self-appraisal of future specialists was proved