Chronic atrophic gastritis c2 with erosion is a subtype that indicates the degree of atrophy of the gastric mucosa, suggesting that the atrophy of the gastric mucosa has exceeded the gastric angle, involving the gastric sinus and the gastric angle, the lower lesser curvature of the gastric body, and the cardia mucosa has not yet been involved. The common causes and symptoms are usually H. pylori infection, which may also be caused by prolonged use of irritating drugs, or by long-term alcohol consumption, during the onset of which there is usually wasting, weakness of the limbs, and even acid reflux, nausea and vomiting in the stomach. Treatment of chronic atrophic gastritis c2 with erosion requires prompt testing for H. pylori. If there is H. pylori infection, antibacterial treatment is needed promptly, usually using H. pylori quadruple therapy. At the same time, drugs to repair the gastric mucosa, such as omeprazole and cimetidine, can be applied as prescribed by the doctor for treatment. Regularly review the gastroscopy to rule out any other abnormalities. For patients with chronic atrophic gastritis c2 with erosion, attention should be paid to regulating the diet in daily life, eating less and more meals, not overeating, eating easily digestible food, eating more fresh green vegetables, such as rape, spinach, carrots, etc. Gravy as well as thick broth can be eaten in moderation to help secretion of gastric juice and relieve discomfort.