Heart valve disease is a common heart disease that is caused by structural and functional abnormalities of one or more heart valves due to inflammation (rheumatism, infection, etc.), congenital developmental abnormalities, myocardial ischemia, mucus-like degeneration, degenerative changes, trauma, etc., resulting in valve stenosis and/or incomplete closure. When heart valve lesions occur, if left unattended or improperly treated, adverse or even serious consequences, such as infective endocarditis, atrial fibrillation (AF), heart failure, and cerebral embolism, can occur and endanger lives. Heart valve surgery is an important tool in the treatment of heart valve disease, including valvuloplasty or repair (valve repair) and valve replacement (valve replacement). Atrial fibrillation is the most common persistent cardiac arrhythmia. According to statistics, the incidence of atrial fibrillation is 0.4%-2.0% in the general population, 5%-10% in those over 60 years of age, and up to 40% in those with organic heart disease, and up to 60%-70% in those with rheumatic valve disease. The danger of atrial fibrillation is not only that it causes panic, chest tightness, shortness of breath, dizziness and fatigue, which can affect the quality of life of patients, but also that it can lead to tachycardia cardiomyopathy, thromboembolism (such as embolism of brain, heart, kidney, gastrointestinal, limbs, etc.) complications up to five times normal, which significantly increases the rate of disability and death; in addition, atrial fibrillation can reduce cardiac function by 20%-30%, which obviously increases the risk of heart surgery for patients with heart disease. This significantly increases the risk of cardiac surgery in patients with heart disease. Therefore, the treatment of atrial fibrillation has received increasing attention. In recent years, intraoperative cardiac radiofrequency ablation has become an important procedure for the treatment of atrial fibrillation during cardiac surgery. It is a better technique for the treatment of atrial fibrillation because it is simple, fast, safe, effective and has a high success rate. Our cardiovascular department adopts the Atricure bipolar radiofrequency ablation device to perform RF ablation of atrial fibrillation for patients with wind heart disease at the same time of valve repair or valve replacement, and has achieved very good results. RF ablation of atrial fibrillation can be performed not only in conjunction with valve surgery, but also with other cardiovascular procedures such as coronary artery bypass grafting, corrective surgery for precordial disease, and macrovascular surgery, as well as for patients who have failed catheter ablation, or for patients who have failed or cannot tolerate drug therapy.