Abstract: In order to formalize the emotion commonsense,we study on the emotion producing and varying rules of people taking on their own social roles in a definite contextual situation,and propose a formal representation model of emotion commonsense.We use a school context to illustrate our approach.Through an experiment on modeling the emotion commonsense in the school context,it proves that the representation of emotion commonsense with our model is effective and correct.Besides,integrating with cognitive appraisal model,our model can be used in describing the emotion processing formally.