It is performed by first puncturing the internal jugular vein or subclavian vein and bilateral femoral veins and feeding the cardiac catheter electrodes for electrophysiological examination to clarify the diagnosis and the location of the lesion to be ablated, and then introducing radiofrequency current (a high frequency electromagnetic wave) into the heart through the cardiac catheter to generate a high temperature in a small area, which, through thermal efficiency, causes water evaporation in the local tissues, drying and necrosis, causing the abnormal structure to lose its function. This results in the eradication of tachyarrhythmias. After the operation, pay attention to bed rest according to the doctor’s instructions, pay attention to the occurrence of panic, chest tightness, chest pain, discomfort at the puncture site, blood and exudate leakage, and report to your doctor in a timely manner. At the same time, pay attention to emotional stability, avoid emotional excitement, diet should be light, low salt and low fat, eat more vegetables, fruits, fibrous food, and drink more water. Avoid strenuous activities within 1 month after surgery, as excessive physical activity may lead to vascular complications. For patients with supraventricular tachycardia, radiofrequency ablation is a radical procedure that can cure supraventricular tachycardia with a success rate of 95-98% or more, and some patients take betalactone for a short time depending on their condition. Drugs such as aspirin. For patients with atrial fibrillation, there is a 3-month postoperative observation period for the effect, generally requiring anticoagulants for 6 months and antiarrhythmic drugs for 3-6 months, after which all drugs can be discontinued. During this period, anticoagulants (warfarin) and antiarrhythmic drugs (amiodarone) should be adjusted on the advice of the doctor, paying attention to both efficacy and side effects. In addition, with the development of frequency ablation technology, its indications have been broadened, and some organic heart disease combined with rapid arrhythmia radiofrequency ablation treatment is becoming more and more common. These patients should come to the hospital for regular outpatient review and adjust the treatment plan according to the effect of radiofrequency ablation and so on.