The treatment of liver cancer includes surgery, interventional, radiotherapy, immunotherapy, Chinese medicine and other methods. Due to the lack of specific symptoms in the early stage, most of them lose the opportunity of surgery when they are diagnosed, so minimally invasive intervention is the preferred treatment method. 1.Hepatic artery embolization chemotherapy: puncturing the femoral artery and injecting chemotherapeutic drugs and embolic agents into the tumor vessels through the catheter to necrosis the tumor tissue and shrink the mass to prolong the survival. 2.Alcohol injection: Injecting anhydrous alcohol into the tumor through percutaneous puncture to dehydrate and fix the tissues, cause cell degeneration and necrosis, which is effective in controlling or delaying the growth of liver cancer, but fever and local pain are more obvious. 3.Radiofrequency therapy: percutaneous puncture into the tumor, radiofrequency can activate ions to produce intra-tissue frictional heat with the temperature reaching 80-100℃, which can cause coagulative necrosis of cancer tissues. 4.Microwave therapy: percutaneous puncture into the tumor, multiple electrodes can be inserted, through the oscillation of polar molecules in the tissue heating, the temperature can reach 65-100 ℃, so that the cancer tissue coagulation necrosis. Argon-helium knife therapy: Argon-helium targeted therapy system is called argon-helium knife. The hollow superconducting knife is inserted into the tumor by percutaneous puncture, and the high pressure room temperature argon and helium are alternately outputted, and the argon freezes the diseased tissues to minus 160℃ within ten seconds, which turns the tumor into an ice ball. Argon-Helium Targeted Therapy System adopts U.S. space rocket guidance technology and is the only medical system in the world that has the dual effectiveness of ultra-low temperature freezing and heat therapy. The simplicity and great potential of this therapy is a major breakthrough in medical technology, and its introduction is a revolution in the history of tumor treatment.