The caudate lobe of the liver is a particularly important anatomical structure in the liver. Clinically, the liver can be divided into two halves according to the distribution of intrahepatic vessels and bile ducts, which are divided into the left outer lobe, left inner lobe, right anterior lobe, right posterior lobe and caudate lobe. Generally speaking, the caudate lobe is located at the back of the liver and is semi-encircled around the inferior vena cava behind the liver, with the inferior vena cava behind the caudate lobe, the confluence of the hepatic veins above, and the portal trigone below. Blood flow from the caudate lobe generally returns to the inferior hepatic vena cava through a series of short hepatic veins, making the caudate lobe of the liver very important in hepatobiliary surgery. Because it is prone to intraoperative hemorrhage and is centrally located in the liver, resection of the caudate lobe, especially in isolation, is a very important challenge in hepatobiliary surgery. Clinical resection of hepatic caudate lobe tumors is a very complex task.