Paroxysmal atrial fibrillation can be treated, mainly on the basis of treating the primary disease and taking active anticoagulation, reversing and maintaining sinus rhythm, controlling the ventricular rate and other methods. 1. Anticoagulation therapy: Because of the high incidence of embolism in patients with atrial fibrillation, anticoagulation therapy is needed, and commonly used drugs include warfarin and rivaroxaban. 2. Resetting and maintaining sinus rhythm: commonly used methods include drug resuscitation, electrical resuscitation and catheter ablation therapy. Common drugs for drug resuscitation include amiodarone and propafenone, etc. When drug resuscitation is ineffective, electrical resuscitation or catheter ablation therapy can be considered. 3. Ventricular rate control: the drugs for ventricular rate control include digitalis preparations, calcium channel blockers, such as digoxin, nifedipine, etc. They can be used singly or in combination, and 24-hour ambulatory electrocardiogram should be performed to assess the situation after the ventricular rate is controlled to the target range. When paroxysmal atrial fibrillation occurs, it is necessary to consult a doctor in time to identify the primary cause and choose a scientific treatment under the guidance of a physician.