Nausea and vomiting are not only the symptoms of spleen and stomach diseases,but also the manifestations of liver(gallbladder)disease,heart disease and Class II spleen disease(spleen-heart disease) induced by excess of seven emotions,as well as the depression syndrome due to phlegm and fluid retention and static blood. Nausea and vomiting triggered or aggravated by emotional factors and treated effectively based on or combined with relieving depression,can be summarized as nausea and vomiting due to depression syndrome. It can be found in the mental psychological factors caused diseases with the symptoms of nausea and vomiting. Nausea and vomiting due to depression syndrome includes the single depression syndrome and coexistence of diseases and depression syndrome. For single depression syndrome,the location of disease is the liver,gallbladder,heart and spleen,not the stomach,which can be treated based on relieving depression. And for the coexistence of diseases and depression syndrome,which means the depression syndrome and spleen and stomach diseases exist at the same time,it should treat based on relieving depression and combined with regulation on the spleen and stomach.