Eating Disorders (ED) is a mental illness characterized by abnormal eating behavior, since complex etiology and the characteristics of causing intense physical and mental pain to patients, it has always attracted the attention of researchers. At present, one of the main treatments for eating disorders is psychotherapy, among them, cognitive behavioral therapy has been proved feasible and effective by a number of domestic and foreign studies. This article focuses on the relevant concepts and theoretical foundations of cognitive behavior therapy, dialectical behavior therapy, acceptance and commitment therapy and the effects of these three therapies in the treatment of eating disorders, it will provide some ideas for future clinical research on eating disorders.