Wide-base gastric polyps are usually benign polyps, but they can also become malignant. Wide-base polyps refer to polyps that are wide and broad at the base, small at the tip, have a large contact surface with the surrounding tissues, and have no tips, which are more difficult to remove endoscopically and have a higher likelihood of malignancy than narrow-base polyps. Its tendency to become cancerous is related to the size of the polyp. The cancer rate of polyps smaller than 1cm is about 1%, and the larger the polyp, the higher the cancer rate. If gastric polyps of broad-based type are found, they should go to regular hospitals in time for consultation and treatment under doctor’s guidance. Pathological examination will be carried out after endoscopic resection or surgical excision of the polyps in order to clarify the nature of the polyps. If the pathological examination shows that it is malignant, it should be examined and treated as soon as possible, and the lymph nodes should be cleared as well as radiotherapy and other methods. In addition, because gastric polyps are prone to recurrence, even if the pathologic examination is benign, it should be regularly reviewed.