Chronic gastritis is a common, multi-infection disease, some patients have heavy symptoms, recurrent, lingering, and never completely cured, the patient is distressed, mental stress. Classification: clinically divided into atrophic gastritis, non-atrophic gastritis (superficial gastritis) also includes bile reflux gastritis and erosive gastritis, etc. Etiology: many and complex such as Helicobacter pylori (Hp) infection, dietary and environmental factors, psychiatric factors, long-term use of certain harmful drugs, addiction to alcohol and tobacco, etc. Diagnosis and differential diagnosis; mainly rely on gastroscopy combined with pathological examination to make an accurate diagnosis. It should be distinguished from functional dyspepsia, peptic ulcer, gastric cancer, gallstones, cholecystitis, pancreatitis, pancreatic cancer, chronic liver disease, heart disease, etc. Treatment: At present, there are many kinds of treatment, whether Western medicine or Chinese medicine, and many patients are not systematic and regular in treatment, so the treatment is ineffective. Some of them have poor efficacy because the cause of the disease has never been removed. Western medicine includes Hp eradication therapy, acid suppressant or antacid, gastrointestinal motility drugs, gastric mucosa protection drugs, etc. Chinese medicine includes proprietary Chinese medicines and tonics, and Chinese medicine treatment must be individualized and evidence-based. Chinese medicine has its own advantages in treating chronic gastritis, and if the evidence is correctly identified and treated, the results are very satisfactory. When to use Western medicine, when to use Chinese medicine, when to use both Chinese and Western medicine, depending on the condition and the actual situation of the patient. In addition to treatment, it is also important to pay attention to the maintenance of the stomach.