Gada is the brainchild and democratic system of the Oromo people that stand for all life without any prejudice. Gada regulated political stability, peace, economic growth, social doings, cultural duties, ritual and moral responsibility by its structure, principle and function. The quality of Gada system is that it has division of power, Inclusiveness, principle of check, keep majority rules and minority right, and balance and role of peace building among the society. The general objective of this paper is to present the significance of Gada in keeping peace of society and country event focus on Guji Oromo, south eastern Oromia for all readers. Different paper were written by lots of scholars on the concept of Gada system, but it is scanty on blood feud activities for the resolution chaos and restoration of peace. Thus this paper is done in order to fill the gap. The data in this study consisted of the primary and secondary sources. The primary source largely focus on interview either physically or mobile calling based on snow ball sampling method, discussion and observation different reconciliation. Secondary sources were collected by assessing, analyzing, evaluating, crosschecking and codifying different published and unpublished materials. Finally, these data were described, expressed and articulated through qualitatively research method and based on historical and ethnographic approach.