Chronic atrophic gastritis can be carried out to improve life, to eat a regular diet, avoid eating pickled food and alcohol and other stimulating food. You can also use drugs to regulate and nourish the stomach, with ranitidine, bismuth pectin, clarithromycin and so on, to inhibit the secretion of gastric acid, protect the gastric mucous membrane and inhibit the growth of bacteria. 1. Life improvement: Eat regularly and quantitatively to avoid over-eating to aggravate the burden of the stomach. You can eat more bananas, spinach and other fresh fruits and vegetables, and avoid preserved foods such as bacon and kimchi. Reduce alcohol, hot pot and other stimulating food, so as not to cause gastric mucosa bleeding and so on. 2. Use drugs: use ranitidine to inhibit gastric acid secretion and relieve the stimulation of gastric mucosa by gastric acid. Use bismuth pectin, aluminum sulfate, magnesium aluminum carbonate to protect the gastric mucosa and reduce the damage of digestive juices on the gastric mucosa. You can also use clarithromycin, amoxicillin, bismuth potassium citrate, omeprazole, etc. to eradicate Helicobacter pylori and inhibit bacterial growth. Chronic atrophic gastritis should be promptly regulated under the guidance of the doctor, the rational use of drugs, do not blindly use drugs to avoid adverse reactions.