Adenocarcinoma belongs to a kind of malignant tumor, the severity and survival rate are greatly affected by individualized factors and cannot be generalized, generally speaking, the earlier it is detected, the earlier it is staged and the earlier it is treated, the better the prognosis is. Adenocarcinoma is a kind of malignant tumor of epithelial origin, and it is a common pathological type in the digestive system. The severity of adenocarcinoma mainly depends on the depth of infiltration of cancerous tissues, lymph node metastasis, clinical staging, and the patient’s physical status. Survival rate of adenocarcinoma is closely related to clinical stage. Early stage adenocarcinoma patients can be cured through radical surgical resection, after which the need for adjuvant treatment should be decided according to the patient’s condition. It is recommended that patients should consult the doctor in time and follow the doctor’s instruction actively. Early detection, early diagnosis and early treatment are the keys to cure adenocarcinoma and prolong life.