One of the main components of the comprehensive internationalization of the university is the internationalization of students, as it is one of the factors shaping the professional culture of a graduate of a university in the modern world. Academic mobility is a priority direction of internationalization of students. However, various barriers hamper its development, the main one being the financial barrier in recent years. In addition, uncontrolled exit mobility contributes to brain drain from Russia, i.e. it is a problem of a national scale. The concept of internal internationalization, developed with the aim of alleviating the inequalities between the educational systems of states in general and universities in particular, helps with success to overcome both negative factors. In accordance with this concept, universities should conduct a set of internationalization activities not related to exit mobility and involve a wide range of students and workers. Accordingly, internationalization becomes a tool for the formation of international aspects of the professional culture of most students. The proposed system for forming of professional culture via supporting the internationalization of students includes three models: the participation of students in short-term international programs of their institution, the tutoring of foreign students of long-term educational programs and the participation of students in the implementation of international student projects. The article compares the characteristics of all models, as well as recommendations for their implementation.