Comprehensive understanding of atrial fibrillation should be from the following points: 1, incidence, atrial fibrillation is the most common clinical arrhythmia, because atrial fibrillation is a disease of the elderly, in fact, atrial fibrillation is a sign of aging body functions, so whether or not there is hypertension, whether or not there is coronary heart disease, to the age of 60 years or more there is the possibility of atrial fibrillation episodes: 2, the danger, atrial fibrillation is very serious, atrial fibrillation can lead to stroke, cardiac decompensation, in as well as life Quality of life decreases, do not think that atrial fibrillation is not felt, clinical symptoms are not obvious ignore the treatment of it. 3, atrial fibrillation treatment options, a large number of clinical evidence-based basis suggests that atrial fibrillation drug therapy is ineffective, catheter ablation is the only way.