The object of study - professional stability of personality.The subject of the study - the psychological characteristics of professional stability as a component of mental stability of the person.Research methods. With a view to solving the problems of research and ensure the objectivity of research professional stability of personality in the work used a number of methods, namely: theoretical methods that allowed comparison of different points and to clarify certain concepts and psychological nature of the phenomenon of professional stability of personality empirical methods: experimental methods (method of playback duration) , the method of scientific observation method psycho-diagnostic testing, the method of ascertaining experiment, methods of mathematical processing of empirical data.The method of psycho-diagnostic evaluation included the following basic techniques samootsinochnie: "Adaptability" and A.G.Maklakova S.V.Chermyanina, tests, questionnaires and volitional self A.G.Zverkova E.V.Eydemana, tests, questionnaires social self G. S.Nikiforova, V.K.Vasileva and S.V.Firsovoy, Technique "The level of subjective control" E.F.Bazhina, E.A.Golinkinoy and A.M.Etkinda, technique A.A.Reana "Motivation and Success fear of failure. "In addition to these basic techniques are also included supporting research methods: observation, post-experimental interview. For the statistical analysis of the data selected by a computer program SSPS v11.5 for Windows with packages calculate the correlation coefficients, standard ratio PR (percentile), t-Student's t test, and others.The scientific novelty of the research lies in the fact that for the first time:- The notion of professional stability against criminal investigator; Highlight the five-component structure of the professional stability of a future criminal investigator; Installed the tau type of students - future employees of the criminal investigation; Emphasis symptom professional stability criminal police; - Set a special role of the adaptive capacity of the individual in the process of becoming his professional stability; - Investigate and describe the individual psychological quality of future employees of criminal investigation, dependence of the state of their professional stability on personal psychological qualities found statistically significant relationships between the structural components of the professional stability; Improved technique to study the stability of a professional criminal investigator on the basis of its understanding of how personality traits and mental condition; Has continued to develop a system of psychological and pedagogical factors, functions, and conditions conducive to the formation of the desired targeted level of professional stability of students at a grade level in their schools MIA.The practical significance of the results in a dissertation study is that it articulated and substantiated ways to improve the effectiveness of the solution of professional problems, given suggestions that will enhance the professional development and operation of the criminal police. The results obtained by the author in the study, can be used in professional selection and determining the readiness of a particular type of professional activities, psychological counseling, targeted sectoral organization of the educational process of the university to increase resistance to negative factors on the individual police officer. Scope institutions of higher education, psychological services.