The complexity of the human social system and the numerous issues and problems that threaten social well-being have made it very difficult to manage society. Islam religion has also used a set of moral teachings. Accurate understanding of the concept of key words is one of the most important requirements for understanding and applying religious teachings correctly. "Mercy" is one such word. The aim of the current research is to answer these two basic questions: What is the exact meaning of the word "mercy" in the field of social relations? What are the educational effects of "mercy" in social relations? In response to these two questions, the verses and narrations have been examined and analyzed with the descriptive-analytical qualitative study method. First, the concept of "mercy" has been analyzed in the field of social relations. According to the findings of the research, the word "mercy" is not only limited to human inner actions such as kindness, compassion, and pity, but also includes selfless and selfless actions to compensate for the shortcomings and weaknesses of the deceased. Also, the presence of mercy in social relationships has educational effects that will have a tremendous impact on social well-being. These works include: flexibility in collective life; development of relationships and social solidarity; Spreading forgiveness, forgiveness and forgiveness; creating a sense of responsibility towards society; establishing complete security in relationships; maximum fulfillment of needs; Lack of patience in delivering mercy and ultimately the basis for personal and social growth.