Three months after radiofrequency ablation of atrial fibrillation, we should pay attention to the regular review of electrocardiogram, adhere to anticoagulation therapy to prevent the occurrence of esophageal fistula. 1. Three months after radiofrequency ablation of atrial fibrillation, it is necessary to strengthen the follow-up, regular electrocardiogram examination, according to the doctor’s instructions to insist on oral antiarrhythmic drugs, such as amiodarone, to prevent the recurrence of atrial fibrillation. 2. After radiofrequency ablation of atrial fibrillation, routine anticoagulation therapy should be carried out, commonly used drugs, such as rivaroxaban, most of which need to be anticoagulated for three months, and long-term anticoagulation therapy is needed for patients with high risk of embolism. 3. In the three months after the atrial fibrillation operation, we should try to eat mainly soft food, avoid eating hard food, so as not to damage the esophagus, and prevent the occurrence of atrial esophageal leakage. After radiofrequency ablation of atrial fibrillation, you should follow up regularly in the hospital according to the doctor’s instructions to avoid complications.