Liver interventions, currently in clinical practice, mainly include transhepatic artery chemoembolization, as well as radiofrequency ablation and microwave ablation. They are mainly used to treat primary liver cancer, postoperative recurrence of liver cancer, and hepatic hemangioma. Transhepatic artery chemoembolization can be performed under local anesthesia. A catheter sheath is inserted through the femoral artery in the inguinal region, and then a contrast catheter is placed through the catheter sheath at the hepatic innominate artery. At this point, chemotherapeutic drugs can be injected through the catheter alone, or furthermore, the tumor supply artery can be super-selected through the microcatheter and embolic drugs can be injected through the catheter to slow down the growth of the tumor; while radiofrequency ablation and microwave ablation are also performed under local anesthesia. Its is a direct percutaneous transhepatic puncture under the guidance of imaging, mainly ultrasound and CT, and the electrode needle is placed into the liver tumor. By adjusting the appropriate energy and time, local high temperature is generated to cause coagulative necrosis of tumor tissues and achieve therapeutic effect.