Catheter ablation is a new treatment for atrial fibrillation that has been developed in recent years. It is performed by delivering a very thin (4 mm diameter) catheter through a vein to specific areas of the heart (usually the connection between the atria and the pulmonary veins) where the focal point of atrial fibrillation is located, and then releasing radiofrequency or other energy (e.g., ultrasound) to treat it. The major advantage of catheter ablation over drug therapy is that if the procedure is successful, atrial fibrillation can be completely eradicated without the need for lifelong antiarrhythmic drugs, making it a once-and-for-all treatment. The success rate of atrial fibrillation catheter ablation (1) limited to the current level of medical technology, paroxysmal atrial fibrillation (AF) without significant cardiac structural abnormalities about 90%; (2) chronic atrial fibrillation (AF) combined with more serious cardiac structural lesions about 70%-80%; (3) above is the success rate after 2-3 ablations, generally do not recommend more ablations; atrial fibrillation catheter ablation procedure method and time 1.Whether or not to operate: No operation, but need to puncture 2-3 needle eyes, the needle eye is usually chosen thigh, shoulder or neck; 2.Whether or not to use general anesthesia: Most use general anesthesia, the patient has no pain during the operation, to achieve painless treatment of atrial fibrillation. 3, surgery time: general paroxysmal atrial fibrillation about 2-3 hours, chronic atrial fibrillation 4 hours ranging. At present, there are three main types of treatment methods for atrial fibrillation at home and abroad as follows: 1, drug therapy: it requires lifelong administration and frequent monitoring, there may be bleeding risks and poor control, in addition to hyper- or hypothyroidism, pulmonary fibrosis, liver function impairment, gastrointestinal reactions, etc. Most of them will recur. 2.Catheter ablation treatment, which has been carried out at home and abroad for more than 10 years, has been more mature, does not require open surgery, only 2 femoral veins are needed, and the success rate is higher, which can reach 90% or even more, but the procedure needs to be performed in an experienced hospital. 3.Surgical treatment: mainly minimally invasive labyrinth surgery, which has a higher success rate but is slightly more traumatic compared to catheter ablation.