Functional dyspepsia (FD),one of the functional gastrointestinal disorders(FGIDs),pertains to the category of psychosomatic illness in digestive system.Huangdis Internal Classic describes the disease as "epigastric fullness ","epigastric pain "," acid regurgitation " and " vomiting ".Doctors deem that liver and stomach are closely related to each other in physiology and pathology.