The survival period of pancreatic cancer with chemotherapy alone is about 3-12 months, because pancreatic cancer is a relatively insensitive tumor to chemotherapy, that is, pancreatic cancer is a malignant tumor that can barely achieve good results with chemotherapy. The main treatment for pancreatic cancer is radical surgery, and only early stage pancreatic cancer can be treated by radical surgery. Only early stage pancreatic cancer can be treated by radical surgery. Early stage pancreatic cancer is a small tumor with no invasion of surrounding blood vessels or lymphatic metastasis. Once lymph node metastasis and invasion of the surrounding blood vessels appear, it is advanced or locally advanced pancreatic cancer, which can only be treated by simultaneous radiotherapy and chemotherapy to relieve patients’ pain and prolong their life span, but not to achieve the purpose of radical treatment.