Lymphatic metastasis of intrahepatic cholangiocarcinoma means that the cancer cells of intrahepatic cholangiocarcinoma have spread and metastasized to lymphatic tissues, and the patient’s condition further deteriorates. Cholangiocarcinoma is a malignant neoplastic disease of bile duct system, which can be divided into intrahepatic cholangiocarcinoma and extrahepatic cholangiocarcinoma according to its relationship with liver, and intrahepatic cholangiocarcinoma is located in the inner part of liver. Lymphatic metastasis of intrahepatic bile duct cancer refers to the spreading and metastasis of the patient’s cancer cells to lymphatic tissues, which is a manifestation of the further development and deterioration of the cancer and the situation is more serious. Cancer develops and deteriorates extremely fast, patients should cooperate with doctors to complete tumor markers, PET-CT and other imaging tests, liver puncture pathology biopsy and other tests in time to clarify the development of the disease. Patients with lymphatic metastasis of intrahepatic cholangiocarcinoma should go to the hospital in time, so that the doctor can formulate the treatment plan according to the patient’s specific situation and carry out the treatment in time to avoid delaying the condition.