Carcinoma refers to malignant tumors originating from epithelial tissues, and cholangiocellular carcinoma refers to malignant tumors originating from epithelial cells of the bile ducts. The bile ducts can be divided into intrahepatic bile ducts and extrahepatic bile ducts, and cholangiocellular carcinoma includes intrahepatic and cholangiocarcinomas as well. Intrahepatic cholangiocarcinoma originates from the epithelial cells of intrahepatic bile ducts and belongs to primary liver malignant tumors. Its treatment is mainly hepatic resection, which is not very sensitive to radiotherapy and chemotherapy. Cholangiocarcinoma refers to malignant tumors originated from extrahepatic bile ducts, which can appear in the upper, middle and lower sections of extrahepatic bile ducts according to the location of occurrence, and the clinical manifestations as well as surgical treatments are different. Bile duct cancer is mainly treated by radical surgery. It is recommended that patients should consult the doctor in time and follow the doctor’s instruction actively.