This research was carried out to determine the effect of forgiveness on positive thinking and life satisfaction in university students. In the research, a survey was applied to collect data. The survey includes “Personal Information Form” and “Heartland Forgiveness Scale”; “Positive-Negative Emotion Scale” and “Life Satisfaction Scale”. In the study, the data obtained from a total of 385 university students were analyzed with the SPSS 25 package program. As a result of the analysis, it was determined that the total score of forgiveness significantly affected the level of positive and negative emotions and life satisfaction. In the study, it was also determined that the sub-dimensions of self-forgiveness and forgiveness of others affected the level of life satisfaction, while the sub-dimension of forgiving situations did not affect the level of life satisfaction.