Based on the analysis of current scientific literature on the issues of improving the corporate culture of a university lecturer, the author’s definition of the concept of “corporate culture of a university lecturer” is formulated. The methodological basis of the study is represented by the following approaches. The ideas of systematic approach were the basis for considering the phenomenon under study as an integral, orderly, complexly organized education and building the process of its improvement. A culturological approach enriched the cultural foundations of considering and understanding the essence of the corporate culture of the lecturer, the process of its improvement by relying on value constructs of interaction, the presentation of cultural forms of self-development. The ideas of personal approach formed the basis for considering the personality of the lecturer with their value orientations, individuality, and subjective position as the main criterion and result of the productive transformation of corporate culture. An activity-based approach has determined the targeted, procedural, and effective components of the activity and interaction of lecturers, the special organization of which is the most important condition for the development of the lecturer’s personality and his corporate culture. The provisions of acmeological approach presented the essence of the development of the corporate culture of the lecturer by taking into account the individual nature of development, as a movement towards maturity, through its contradictions resolved by the lecturer-subject. We note the principles of consistency, humanization, unity of objective and subjective, joint activity, cultural conformity of the development of corporate culture of a university lecturer.