Duodenal cancer is a malignant tumor, the survival rate cannot be generalized, as follows: 1. Early stage duodenal cancer tumor is less than 2cm in diameter, and the level of infiltration is only within the mucosal layer as assessed preoperatively, minimally invasive surgery can be done through gastrointestinal endoscopy, which does not change the physiological function of patients after surgery and can achieve better quality of life, and the five-year survival rate can reach more than 95%; 2. Late stage duodenal cancer depends on pathological type, clinical staging and patient’s response to treatment measures. 2.Advanced duodenal cancer depends on pathological type, clinical staging and patient’s response to treatment measures, without distant metastasis, it can be treated by surgery, and the surgical resection rate can reach more than 70%, after surgery, the need for further chemotherapy and biological targeted therapy can be evaluated according to pathological results, and the prognosis is better, and the five-year survival rate can reach more than 25%-60%; 3.For patients with distant metastasis and cannot be operated, there are more treatment measures, and if patients have better response to treatment The survival rate of 1-2 years is also higher.