Pancreatic cancer is called the king of cancers, which means that the degree of malignancy is relatively high. Pancreatic cancer mostly originates from the ductal epithelial cells of the pancreas, and pancreatic tissues are basically divided into ductal epithelial and mesenchymal tissues, and the pancreas has two main functions, endocrine and exocrine functions. The pancreas has two main functions, endocrine function and exocrine function. The exocrine function is mainly to secrete pancreatic juice, which enters into the intestine along the pancreatic ducts. Cancer of pancreatic ductal epithelial cells is subdivided into pancreatic head, pancreatic body, pancreatic neck and pancreatic tail cancer. Overall pancreatic head cancer is easy to be detected in early stage because if the tumor of pancreatic head cancer is more than 3cm, the patient will have jaundice, and after jaundice occurs, the patient will go to the hospital to have a checkup. Cancer of pancreatic body and pancreatic tail is also easy to be detected at early stage, but it is easy to be misdiagnosed because pancreatic cancer has digestive symptoms at early stage, such as indigestion, epigastric distension, pain, and sometimes pain at back, which is often misdiagnosed as gastric disease, so the patient loses the chance to be treated at early stage. If the treatment is relatively troublesome in advanced stage, because the treatment of pancreatic cancer is not like the treatment of liver cancer, careful assessment should be made to evaluate whether it is resectable pancreatic cancer, or junction resectable or unresectable pancreatic cancer, if it is resectable, the first choice should be to do the surgery, and if it is junction resectable, it is usually necessary to do the local radiotherapy, plus systemic chemotherapy, so as to make the cancer resectable, and there is also a part of the patients with progressive stage, and this kind of pancreatic cancer cannot be resected, so the patients lose the opportunity of treatment in early stage. If the cancer is not resectable, the effect is relatively poor, and only other treatment options can be chosen.