The textbook examines the theoretical foundations of the processes of organizing the activities of a credit institution, reveals the most significant aspects of the functioning of a commercial bank in modern conditions. The basic concepts of the course are analyzed, bibliographic lists are given, tasks for self-control are given. This textbook summarizes the experience gained by the author in the field of banking and is intended for undergraduate students studying the discipline "Organization of the activities of a commercial bank" and students in the profile of training "Banking."