Gastric atypical hyperplasia is a type of precancerous lesion of gastric cancer, and with aggressive surgical intervention at an early stage, most of them exist for the same duration as normal and have a better prognosis compared to gastric cancer. Endoscopic mucosal resection and endoscopic submucosal dissection are currently the treatment of choice for atypical hyperplasia with a greater degree of risk, such as high-grade heterochronous hyperplasia. Surgery is effective in reducing the risk of heterochronic gastric cancer. Together with regular review, smoking and alcohol cessation and other lifestyle adjustments, most post-surgical survival is no different from normal people. The development of gastric cancer is a complex process involving multiple pathological processes. At present, it is generally recognized that under the influence of Hp infection and other factors, the normal gastric mucosa gradually develops from inflammation to atrophy, intestinal chemosis, heterogeneous hyperplasia and other atypical hyperplasia, and finally evolves into gastric adenocarcinoma. Heteroplasia is divided into low-grade heteroplasia and high-grade heteroplasia. When gastric atypical hyperplasia occurs, it is recommended to go to the hospital for consultation in time.