Liver cancer is the sixth most common malignant tumor in the world, and its typical symptoms only occur when the disease has progressed to the middle or late stage. More than 70% of patients have already lost the chance of surgery when they are found, and novelist Wei Wei, Hong Kong artist Fatty and actor Fu Biao all died of liver cancer. So besides the traditional surgical resection and liver transplantation, are there any other efficient and humanized treatment means? Recently, the Department of Infection II of our hospital performed radiofrequency ablation surgery on several liver cancer patients, all of whom had cirrhosis underlying disease, the oldest was 70 years old, the youngest was 40 years old, and some of the patients had multiple foci, and the aim of treatment was to kill the tumor foci completely through radiofrequency ablation therapy. The patients had a smooth operation, and the postoperative review achieved the expected results, and they have been discharged from the hospital with successful recovery. Radiofrequency ablation therapy is a new technology of tumor treatment emerging in recent decades, which was firstly used in the treatment of liver cancer, and was written into medical textbooks by the National Health and Family Planning Commission, and is known as one of the three major methods of curing liver cancer together with surgical resection and liver transplantation. With the help of ultrasound or CT and other imaging technologies, it precisely locates and guides the electrode needle to be directly inserted into the tumor, and through radiofrequency energy, the local tissues of the lesion generate high temperature, dry and eventually coagulate and inactivate the soft tissues and tumors, that is to say, the tumor is burned off. In clinical observation, the treatment of liver tumors with radiofrequency ablation has a very good effect, and it is reported that the survival rate of 1, 2, 3 and 5 years after treatment on the treatment of patients with primary liver cancer is similar to the effect of radical resection by surgical operation. At the same time, it realizes the purpose of minimally invasive and radical treatment of liver cancer. Radiofrequency ablation is mainly applied to tumors smaller than 125px, which can achieve the effect of one-time radical cure with simple operation, small side effects and fast recovery after surgery. In addition, according to the size and number of tumor lesions, RF ablation and hepatic artery intervention are often considered to improve the efficacy of liver cancer treatment.