Atrial fibrillation (AF), short for atrial fibrillation, is one of the most common clinical arrhythmias. Its onset is characterized by the replacement of the effective coherent contraction of the atria by irregular and chaotic fibrillation of the atria. Atrial fibrillation is characterized by fast and irregular atrial excitation of 350-600 times per minute, which leads to fast and irregular ventricular rate, resulting in reduced cardiac output and decreased cardiac function due to insufficient ventricular filling, therefore, patients often have symptoms such as palpitations, dizziness, or tightness of the chest, etc. Patients with organic heart disease are often triggered to angina pectoris or heart failure during atrial fibrillation episodes. Furthermore, during an attack of atrial fibrillation, blood stagnation in the atrium is easy to form intra-atrial thrombus, and thrombus dislodgement can cause peripheral arterial or pulmonary artery embolism, which is one of the common causes of stroke. This is why patients with atrial fibrillation need anticoagulation. If someone has atrial fibrillation, should be in the cardiovascular doctor under the guidance of standardized treatment, mainly to take the following therapeutic measures: 1, to understand the underlying causes of atrial fibrillation and triggering factors, and try to deal with it, such as the patient may be caused by the sinus node insufficiency, such patients may have to need to be placed in the cardiac pacemaker. If the ventricular rate is too fast, drugs should be used to control the ventricular rate. 3, decide whether to restore sinus rhythm, that is, to find out whether there is the possibility of restoring sinus rhythm, and decide to restore and maintain sinus rhythm ideal program (including drugs, radiofrequency ablation or surgical program). Some patients can be cured by radiofrequency ablation. 4, long-term anticoagulation therapy, such as the occurrence of arterial embolism often has a high rate of disability and mortality, so for recurrent paroxysmal atrial fibrillation and persistent atrial fibrillation patients need anticoagulation therapy.