The article deals with the issues of formation of professionally oriented foreign language lexical competence using borrowed vocabulary of a terminological nature in the process of educational activities in the educational organization of the Ministry of Internal Affairs. The purpose of this article is the etymological analysis of foreign borrowings and the formation of a foreign language terminological vocabulary of the student as a system of concepts of the legal field of knowledge based on the developed exercises. This set of tasks is aimed at teaching law students to translate borrowed terminological units in the texts of legal discourse in practical classes on the discipline “Foreign language”, which serve as a means of forming foreign language communicative competence, ensure the development of search and creative skills of students. After analyzing the scientific methodological literature, the author formulates the functions and components of foreign borrowings of the terminological apparatus of the English legal discourse, describes the stages of its formation. In conclusion, it is noted that many examples of borrowings of a terminological nature are a specific feature of the English legal discourse. It is concluded that attracting the attention of students to this terminological group will contribute not only to the effective learning of lexical units in the preparation of professionally oriented texts on the target specialty, but also to the successful formation and development of their professional and general cultural competencies.