Early stage pancreatic cancer requires radical surgical resection, and only radical surgical resection can cure pancreatic cancer completely. If pancreatic cancer has invasion of the portal vein or surrounding blood vessels, or if ascites is present, radical surgery is not possible. The prognosis of pancreatic cancer is very poor once radical surgery is not performed, and the 5-year survival rate is not even 5%. Therefore, as long as pancreatic cancer is in good health and the condition allows for surgery, radical surgery should be performed as much as possible. In case of locally advanced or advanced pancreatic cancer, only simultaneous chemotherapy or palliative treatment is possible, and the prognosis is very poor at this time, with a 1-year survival rate of about 10%.