Аннотация:The article substantiates the conclusion that the participation of citizens in the administration of justice, having a special constitutional and legal significance, is an interdisciplinary principle of legal proceedings. This conclusion can not be shaken by the fact that at present the participation of the people's element in the composition of the court is ensured only in criminal cases and in arbitration courts. The intersectoral principle should not necessarily be exercised in all types of legal proceedings and (or) in all types of cases. It is important that its content reflect the nature and nature of the activities of the judiciary. Based on the analysis of statistical data and taking into account historical examples, the need to expand the forms of citizen participation in the administration of justice is shown.