Conciliation has become an ideal mechanism for conflict resolution, as well as an instrument for citizen participation and peaceful coexistence. However, this reality was consolidated with the entry into force of the Social State of Law, under which principles and values ​​such as participation, justice, equality and peace were exalted and materialized. The historical legal development, foundation of the legal nature and purpose of the institution, has allowed us to observe the great benefits that it has brought to Colombia and Perú, who have shared similar historical and cultural realities, allowing important values ​​to materialize in these nations and contribute to the formation of a participatory and peaceful coexistence, through conciliation. The idea of ​​carrying out a comparative analysis of the conciliatory procedure in Colombia and Perú arises precisely from the benefits that the legal institution poses when it comes to resolving conflicts and the treatment that the same figure is given in different countries despite having a same goal. From there arises the approach of the book, which finds its justification in the legislative incidences that conciliation has in different countries. The analysis advanced in this book aims to solve the following legal problem: what are the procedural dogmatic similarities and divergences of conciliation in civil matters, in ordinary and/or declaratory processes in Colombia and Perú? To respond to the problem, and to the central objective of this text, different themes are developed. In the first place, the conflict and the theories that explain its origin will be analyzed, prioritizing the legal conflict, and from there, understand the emergence of the legal figure of conciliation. In the second order, the alternative conflict resolution mechanisms, their functions, the importance of these legal institutes, their main characteristics, their purpose and the classes that can be found are studied. Thirdly, the legal figure of conciliation is presented, its legal basis, establishing the purposes pursued with the implementation of this institution in Colombia and Perú, as well as the theories that support its existence and reason for being, from the perspective of both countries. Fourth, the differences and similarities of the conciliatory procedure in Colombia and Perú will be observed, establishing their main divergences, as well as their similarities, carrying out a comparative study of the process in question. Fifthly, and taking as a reference what was previously developed, the feasibility of making a proposal that consolidates a single legislative regulation on conciliation, applicable to Colombia and Perú is argued. Finally, the book reflects on the value of conciliation as a mechanism for participation and peacebuilding. For purposes of advancing this last chapter, it is essential to refer to the Social and Democratic State of Law, and the rights that derive from that State model for the peaceful settlement of disputes, which turns out to be the fundamental meaning and purpose of conciliation itself. These arguments will allow to arrive at the study and analysis of the figure of conciliation itself, an instrument for the construction of citizen participation and for its position of peace.