The survival time of duodenal cancer patients may range from weeks to months, and sometimes they can survive for a long time, depending on the severity of the disease, whether the patient can actively carry out treatment, and the physical condition. If duodenal cancer is detected at a very early stage, radical resection of the tumor can be performed at that time, followed by chemotherapy, targeted drug therapy and Chinese medicine treatment according to the pathological results. After follow-up, if there is no obvious tumor metastasis, it is considered clinically cured and has no great impact on survival. If the tumor is found to be very advanced and the patient’s physical condition is too poor and he/she is not able to cooperate with the treatment, the survival time will be shorter. After the discovery of the disease, if the patient’s gastrointestinal tract is still okay, he can take in nutritious substances to improve the body resistance, which can also prolong the survival time.