Liver qi offending the lung is more common in clinical practice, usually manifesting as dizziness, irritability, chest distension and pain. This symptom should also be distinguished from dryness in the lung, which is characterized by a dry cough without sputum or little sputum with dry throat and dry lips. Liver function tests, liver palpation, organ and gallbladder percussion and other tests can help to confirm the diagnosis of liver qi offending the lung. The examination methods of liver gas offending lung are as follows: 1, liver function test: it is through various biochemical test methods to detect the indicators related to liver function and metabolism, in order to reflect the basic condition of liver function. Protein tests related to liver function include serum total protein, albumin to globulin ratio, serum turbidity and flocculence test and methemoglobin test, etc.; serum enzymes related to liver disease include glutamic aminotransferase, glutamic oxalacetic aminotransferase, alkaline phosphatase and lactate dehydrogenase, etc.; tests related to biotransformation and excretion include sulfobromophthalein sodium retention test, etc.; tests related to bile pigment metabolism, such as bilirubin quantification and urinary triple bile test, etc. etc. 2.Liver palpation: It is an auxiliary examination method used to check whether the liver is normal. Palpation of the liver is mainly used to understand the position of the lower edge of the liver and the texture, edge, surface and pulsation of the liver. 3. Liver and gallbladder percussion: It is an auxiliary examination method used to check whether the abdomen is normal. This examination can determine the location of the lesion and the corresponding signs. When the spleen is unsatisfactory to palpation or very little spleen margin is palpated under the ribs, it is appropriate to further examine the size of the spleen by spleen percussion in the hepatic area.