The "Body and soul" of Traditional Chinese Medicine (TCM) is very similar to psychosoma of Western Medicine in concept, although there are the obvious differences in the relationship between the body and spirit, the understanding of psychosomatic disease is gradually tend to be consistent.So, real combination Traditional Chinese Medicine with Western Medicine should begin from "psychosoma" . In the relationship between social and psychological factors and psychosomatic diseases, Traditional Chinese Medicine and Western Medicine consider that "soul" or "social and psychological factors" causes the physical illness or functional disorders.In addition, TCM also proposes "depression caused by sickness" . This view has the practical significance, which has become an unignorable, vigilant and preventive social phenomenon.Based on disease, sign, syndrome of Chinese and Western Medicine, the biological diagnosis, psychiatric symptoms, somatic symptoms, abnormal psychological behavior are the basic elements.Therefore, to establish a "Four-in-one" identification method of psychosomatic gastrointestinal diseases is important, which is convenient, pragmatic, operational and helpful to clinical guidance.It also fully embodies the mutual reference of different concept, complementary advantages, integration and innovation of Traditional Chinese and Western medicine to learn from each other, providing a new understanding for the development of psychosomatic medicine.