Gastric polyps are generally benign and cancer does not usually occur after polyp removal. Gastric polyps can be divided into hyperplastic polyps and adenomatous polyps. Gastric hyperplastic polyps are very common in clinical work, belonging to benign tumors, most of the gastric polyps belong to this type, and actively take treatment its prognosis is very good, do not have to worry too much. At the same time, it should be noted that gastric polyps have the possibility of recurrence, high-risk groups should be under the guidance of the doctor for regular gastroscopy review. Gastric adenomatous polyps are precancerous lesions of gastric cancer, accounting for 10% to 25% of gastric polyps, and the cancer rate can be up to 50%. Early discovery and active treatment are of great significance in reducing the incidence of gastric cancer. In conclusion, gastroscopy is the main screening tool for gastric polyps and precancerous gastric lesions as well as early gastric cancer after gastric polyp removal.