Liver cancer interventional therapy is to introduce precision instruments such as special puncture needles, catheters, guide wires, balloons, stents and drainage tubes into the human body under the guidance of medical imaging equipment to diagnose and locally treat some liver diseases, including primary hepatocellular carcinoma, metastatic hepatocellular carcinoma, hepatic hemangioma, hepatic cysts, intractable ascites and gastrointestinal bleeding caused by cirrhosis and portal hypertension, hepatic vein occlusion (Bugart’s syndrome) , benign and malignant obstruction of bile ducts, treatment of liver hemorrhage, etc., as well as liver puncture biopsy. Interventional therapy applies digital and computer technology, expanding the doctor’s field of vision, with the help of catheters, guide wires and other instruments to extend the doctor’s hands, its incision (puncture point), only the size of a grain of rice, without having to cut through the human body tissues, you can treat many diseases that could not be treated in the past, and which must be treated by surgery or internal medicine with poor therapeutic effect. Interventional therapy is characterized by no incision, small trauma, fast recovery and good effect. Most of the clinically detected liver cancers are in the middle and late stages, and most of them are combined with cirrhosis, so the surgical resection rate is generally less than 20%. Interventional therapy is currently the most effective and commonly used treatment for patients who cannot undergo surgical resection of liver cancer. Since most metastatic liver cancers have multiple foci, interventional therapy is currently the most commonly used diagnostic and therapeutic technique. With interventional techniques, the treatment of hepatic hemangioma and hepatic cysts becomes simple and easy. Interventional therapy for intractable ascites and gastrointestinal bleeding caused by cirrhotic portal hypertension, hepatic vein occlusion (Bugart’s syndrome), and obstructive jaundice has been commonly carried out in large hospitals. It has gradually become the treatment of choice. Hepatocellular carcinoma interventions also include non-vascular interventions, such as CT or ultrasound-guided thermal ablation therapy, which is a kind of radical treatment that makes patients expect to achieve the effect of surgical resection, i.e. tumor-free survival.