Current studies on bulimia nervosa（ BED） have found that the onset and maintenance of overeating are related to negative emotions and maladaptive emotions. DSM-5 diagnostic criteria for bulimia nervosa suggest that BED can only be diagnosed with overeating and negative emotions. The aim of this study is to review the results of related researches on emotion regulation in patients with bulimia nervosa（ BED） and provide reference for clinical practice.