Liver Qi is the material basis and driving force for the liver to carry out its physiological functions. When Liver Qi is insufficient, various functions of the liver are seen to be diminished and Liver Qi deficiency lesions appear. Liver Qi deficiency is commonly seen. Liver qi deficiency can be confused with those conditions, the following gives you how to differential diagnosis of liver qi deficiency. 1, liver qi deficiency and spleen qi deficiency Both can be seen as weakness, light tongue, weak pulse and other signs of qi deficiency. In addition to the above symptoms, spleen qi deficiency is often accompanied by spleen deficiency such as dullness, vomiting, diarrhea, abdominal distension, and bloating after eating. If the spleen does not control the blood, vomiting blood and black stools may be seen, and the body is mostly thin. Patients with deficiency of liver qi often see symptoms of inability to stretch the mind and tendons, such as anxiousness, indifference, indecision, and sleepy legs. Although fullness can be seen in the abdomen and stomach due to wood not spreading, this fullness is all false fullness, softness, and rarely vomiting and diarrhea. 2, liver qi deficiency and liver depression Although both have symptoms of depression such as anxiety and unhappiness, vague pain in the chest and ribs, and abdominal distension, but liver qi deficiency is very depressed by labor and is not diverted by emotions. The liver deficiency is not diverted by emotion. In the case of liver depression, the condition often changes with emotional factors, and appropriate exercise often makes the symptoms better, and the pulse is mostly string. And liver Qi deficiency has obvious symptoms of Qi deficiency, which is not present in liver depression. 3, liver qi deficiency and liver blood deficiency both see numbness of the limbs, claw nails, vision loss, menstrual diffusion and other evidence. As the sutra says: “Qi is the main warm, blood is the main moisten”. Qi deficiency, to tendon relaxation, stretching weakness, and every with cold signs, such as cold limbs, limbs are not warm. In the case of blood deficiency, the numbness of the limbs and the throbbing of the muscles are the most common, and often accompanied by signs of deficiency heat, such as hot flashes and night sweats, and irritability of the five hearts. Chinese medicine believes that “Qi is the root of man”. Huang Yuanqing emphasizes that “nine out of ten people have insufficient qi”. Qi is the basic material manifestation of human life activities. Physiologically, the normal function of the five organs depends on the Qi of the five organs, and pathologically, the dysfunction of the internal organs can also cause abnormal Qi of the organs. Liver qi deficiency is one of the abnormalities of liver qi and is a major pathological mechanism of liver dysfunction. The theory of internal organs identification is imperfect if liver qi deficiency is denied or ignored. All five organs have Qi deficiency, but not the liver, which is a limitation in understanding and thinking. The neglect of liver qi deficiency directly leads to the gap in clinical evidence of “liver qi deficiency”. “This is a limitation of understanding and thinking. The root cause of chronic hepatitis that is difficult to heal is positive deficiency, mainly liver qi deficiency. The deficiency is not able to resist the evil out, and the long existence of evil further aggravates the deficiency. Liver Qi deficiency is a pathological manifestation of the long-term development and evolution of the disease. In conclusion, paying attention to liver qi deficiency can not only enrich theoretically the understanding of liver diseases and difficult diseases, but also expand the clinical thinking.