The article discusses the specifics of teaching the culture of Russian speech to bilingual students. The authors pay special attention to the main speech and grammatical errors that arise while studying the lexical and grammatical norms of the modern Russian literary language. The article offers a system of tasks for working out practical aspects of the culture of Russian speech both in the classroom and in the format of an online course for self-preparation of students. The work contains a number of practical recommendations for teachers of the discipline “Business communications and culture of speech” on teaching bilingual students.