Patients in the active stage of atrophic gastritis can be treated by improving living and eating habits, taking medicines, surgery and other methods. 1. Improve living and eating habits: patients’ diet should reduce the stimulation of gastric mucosa, avoid eating cold, spicy and other stimulating foods, and also keep the diet light and easy to digest, avoid eating fried, barbecue and other indigestible foods. Develop good eating habits, avoid overeating, and insist on eating small meals and chewing slowly. At the same time, patients should quit smoking and drinking as soon as possible, ensure enough rest, and avoid staying up late and overworking. Strengthen the exercise properly to enhance their immunity. 2. Medication: patients can take acid-suppressing drugs such as omeprazole and ranitidine to reduce the secretion of gastric acid, and take gastric mucosal protection drugs such as bismuth potassium citrate and magnesium alumina carbonate to reduce the damage of gastric mucosa. If the patient is accompanied by Helicobacter pylori infection at the same time, eradication treatment can be carried out through quadruple therapy, that is, one kind of proton pump inhibitor (such as omeprazole, lansoprazole, etc.) + two kinds of antibiotics (amoxicillin, clarithromycin, metronidazole, etc.) + one kind of bismuth agent (bismuth potassium citrate, etc.). 3. Surgical treatment: If the patient, on the basis of atrophic gastritis, has the manifestation of intestinal metaplasia in gastric mucosa or has the tendency of cancer, surgical treatment can be considered. Patients in the active stage of atrophic gastritis are recommended to seek medical treatment in time and accept treatment actively. The medication should be taken in strict accordance with the doctor’s instructions, and should not be used on its own, so as not to delay or even aggravate the condition.