The heart rate of persistent atrial fibrillation is generally controlled at <110 beats/minute. 1. Atrial fibrillation, or atrial fibrillation, is an arrhythmia-type disease, the clinical manifestations of which may be palpitations, chest tightness, decreased exercise tolerance, etc. or no obvious clinical symptoms. 2. Atrial fibrillation can be categorized into atrial fibrillation diagnosed for the first time, paroxysmal atrial fibrillation, persistent atrial fibrillation, long-duration persistent atrial fibrillation, and permanent atrial fibrillation. Persistent atrial fibrillation is defined as atrial fibrillation that lasts for 7 days or more and is terminated by medication or direct current resuscitation. 3. The mainstay of AF treatment is anticoagulation and ventricular rate and rhythm control. In acute episodes of AF, the resting heart rate can be controlled to less than 110 beats/minute, and if symptoms are evident, the heart rate can be controlled to 80-100 beats/minute. In long-term treatment for heart rate control, measures should be taken to control the heart rate according to the symptoms, and the ventricular rate can be controlled at <110 beats/min. 4. If atrial fibrillation is diagnosed, it is recommended to follow the doctor's instructions to standardize the treatment.