Radiofrequency ablation method can treat more diseases, mainly including the following: 1. cardiac arrhythmia; 2. intervertebral disc herniation; 3. treatment of hypertension: treating hypertension by ablating sympathetic ganglion of kidney; 4. treatment of tumor: treating tumor by radiofrequency ablation is the most widely used treatment for liver cancer, especially for radical treatment of small liver cancer; it is also commonly used for It is also commonly used in the treatment of limited stage lung cancer. It can also be used in the treatment of limited stage lung cancer, which cannot be removed surgically because of lung function, and can be treated radically by radiofrequency ablation.