People face many positive and negative situations throughout their lives. It is extremely important for mental health that individuals can achieve a positive experience in such situations and continue their lives by making sense of the situation they are experiencing. Positive psychology, which opposes the problem-oriented approach of classical psychology, aims to achieve well-being and happiness beyond just fighting diseases and achieving a healthy life. Positive psychology helps to provide a better life for people and to live more meaningful lives. Recently, various studies have been conducted to examine the relationship between the values advocated by positive psychology and the moral values put forward by Islam. In this context, the value of ""forgiveness"" is recognized by both positive psychology and Islam as a value that directly affects the well-being of the individual. The emphasis on moral values in all religions of the world in general, and Islam in particular, shows how important moral values are in individual and social life. The negative attitude of psychology towards the study of human behavior has recently shifted towards positive moral traits. The main purpose of this paper is to evaluate the best possible act of being of human beings, that is, the acts in which they, as an individual, look out for the benefit of society, from a religious perspective and to examine these acts in terms of the value of forgiveness. The paper basically consists of two parts. In the first part, the historical development and content of positive psychology will be briefly discussed, while in the second part, the ""forgiveness concept"" of Islam, which is extremely important for individual and social life, will be discussed within the framework of positive psychology. In the preparation of this paper, the survey method has been used to utilize the data of modern psychology, especially verses and hadiths.