Chronic active gastritis with atrophy should pay attention to diet, eradication of Helicobacter pylori, medication and so on. 1. Pay attention to diet: patients with chronic active gastritis with atrophy should have a light diet, eat more nutritious, easy-to-digest food, such as millet porridge, fresh vegetables, etc., and avoid hard and rough, spicy and stimulating, pickled, greasy and indigestible food, and at the same time, need to quit smoking and alcohol. 2. Eradication of Helicobacter pylori: Chronic active gastritis with atrophy is mostly due to Helicobacter pylori infection, which can be eradicated by using quadruple therapy of proton pump inhibitor and bismuth, and combining two kinds of antibiotics at the same time. 3. Drug therapy: some patients with low or no acid are accompanied by dyspepsia, and can take oral pepsin combination. If accompanied by bile reflux can be used to promote gastrointestinal dynamics of drugs, such as domperidone, or oral protection of gastric mucosa drugs, such as aluminum sulfate. Chronic active gastritis with atrophy suggests regular gastroscopy, if there is a tendency of cancer, timely surgical treatment. Medications should be taken under the guidance of a doctor.