The life expectancy of early gastric cancer is related to whether it is treated regularly or not, the location of lesion and whether it has metastasis or not. If early gastric cancer is only confined to mucosa and submucosa and no lymph node metastasis occurs, and timely surgical resection is carried out, the 5-year survival rate can be more than 90%. However, the survival rate of early gastric cancer is related to the depth of infiltration and the degree of lymph node involvement, so it is recommended that postoperative adjuvant chemotherapy or radiotherapy be used to improve the 5-year survival rate. It is recommended to have regular physical examination every year to improve the detection rate of early gastric cancer and actively undergo surgical treatment to prolong the survival time.