The purpose of the research is to analyze the legal regulation of labor relations in the civil service system, to identify the features that characterize civil service as a special type of professional labor activity, and to study the experience of the Republic of Azerbaijan and some foreign countries in this field. In the course of the research, theoretical-conceptual perspectives and legal acts regarding the legal regulation of labor relations in civil service are reviewed, civil service is characterized as a special type of professional labor activity, and civil service is analyzed as one of the opportunities of exercising citizens’ constitutional right to work. The results of the research indicate that the foundation of the professional activities of civil servants is labor legal relations. The labor-legal character of the activities of civil servants directly stems from the content of civil service. Labor legal relations exist within the civil service system, and the labor-legal subjectivity of civil servants is inevitable. It is considered impossible to implement civil service without labor legal relations. The foundation of civil service relations is labor legal relations. Civil service acts as a component of labor legal relations.