The principal aim of this study is to test whether interaction of tendency to forgiveness, intolerance of uncertainty and anger expression has a significant effect on Psychological well-being. The study was carried out on 912 people, 478 females and 434 males, who study in Sakarya University Faculty of Education. In selection of individuals to be accepted in the sample, proportional sampling and random sampling methods were used. The data in the study were collected with Heartland Forgiveness Scale, Scale of Psychological Well-being, State Continuous Anger scale and Intolerance of Uncertainty Questionnaire. Analysis was made by using Structural Equational Modelling. As a result of the research, it was found that a- As tendency to forgiveness increases, Psychological well-being also does, b- As tendency to forgiveness increases, Intolerance of uncertainty decreases, however, it was found that it has no mediating effect on Psychological well-being, c- Increase of tendency to forgiveness also increases anger control level and it was found that this mediates the effect of tendency to forgiveness on Psychological well-being.