This study aims to find out how the emotional regulation of students is studied in psychology. Where the emotional development of students in adolescence is a period of transition that is very vulnerable and requires guidance in order to control emotions. Emotions are dangerous mental disorders. The method used in this research is descriptive qualitative method. The subjects of this study were students of the Muslim University of Nusantara Al Washliyah Medan. The analysis using the observation technique of this study shows that psychologically the emotion regulation of students is still unstable