The main role of catheter radiofrequency ablation is to treat tachyarrhythmias. Catheter radiofrequency ablation is an intervention in which an electrode catheter is sent through veins and arteries to specific parts of the heart chambers to release radiofrequency currents, generating heat energy, changing the myocardial autoregulation and conduction of myocardial tissues, and blocking the abnormal conduction and point of origin of tachyarrhythmias, so as to achieve the goal of treating tachyarrhythmias. Catheter radiofrequency ablation is less invasive and has a high success rate, and has become the preferred method for the radical treatment of tachyarrhythmias. Catheter radiofrequency ablation has been widely used in the treatment of arrhythmias caused by various reasons. For example, pre-excitation syndrome combined with atrial fibrillation and fast ventricular rate, atrial flutter with frequent episodes and uncontrollable ventricular rate, and atrial fibrillation with frequent episodes and obvious symptoms. Catheter radiofrequency ablation is recommended to go to a regular hospital and choose whether to undergo catheter radiofrequency ablation after diagnosis by a professional doctor.