In this article, the author examines the formation and development of the institution of amicable settlement in civil proceedings on the examples of Polish, Lithuanian and Cossack legal monuments and analysis of court cases. It is concluded that the legislative consolidation of the institution of amicable settlement occurs for the first time in Polish-Lithuanian times and there are cases from the case law of the end. XIV century, where the parties complete the consideration of the property dispute by conciliation and agreement between them. Polish-Lithuanian and Cossack legislation is analyzed, in particular, the Vistula Statute, Lithuanian Statutes, the Rights of the Little Russian People, etc., which determines the conditions and procedure for concluding an amicable agreement in civil proceedings, as well as reservations on the exercise of this right. The hereditary legal traditions of the Polish-Lithuanian period in Cossack times are noted due to the existence of a similar procedure for concluding an amicable agreement in court. On the other hand, attention is drawn to the existence of more advanced legislative forms on the procedure for concluding an amicable agreement in the Cossack legislation of the eighteenth century, in particular, anticipation of cases where the court can not approve the amicable agreement of civil parties.
 Separately, the author analyzes the peculiarities of concluding an amicable agreement in non-state courts, such as the amicable court and the mining court. If the conclusion of an amicable agreement in an amicable court is regulated by law, in the mainland - on the basis of customary law. Attention is drawn to such a restriction in the exercise by the parties of the right to conclude an amicable agreement in the mining court as the presence of the consent of the community to such procedural actions. It is assumed that such a practice could be due to the collective responsibility of the community for the actions of its members. The existence of the same legal consequence in the studied periods in case of abuse of the right to conclude an amicable agreement is noted: payment of a fine to judges in case of re-appeal of a person to court in the presence of an amicable agreement.