Traditional surgical maze surgery for heart valve lesions combined with atrial fibrillation requires many incisions in the patient’s heart, which is like creating a “maze” and is very difficult and risky. As a result, most patients only have valve problems solved during heart surgery and suffer from atrial fibrillation for life after surgery. This time, we are going to carry out the simultaneous radiofrequency modified maze surgery, which uses a “radiofrequency clip” to clamp the endocardium and epicardium and generate energy to block the abnormal conduction pathway of the heart and inhibit the abnormal atrial fold excitation according to the “principle of surgical maze surgery”. According to the “surgical maze surgery principle”, the abnormal conduction pathway of the heart is blocked, and the conduction of abnormal atrial fold excitation is inhibited, so that the cardiac excitation is conducted along the only channel of the “maze”, thus achieving the purpose of treating atrial fibrillation and restoring the normal movement of the atria. Compared with medical radiofrequency ablation, this method can ablate both endocardium and epicardium at the same time, which has good wall penetration effect, and has a wide surgical field of view, more accurate positioning under direct vision, and high success rate; and compared with the traditional surgical maze surgery, this procedure has the advantages of no additional surgical difficulty, less trauma, shorter operation time, and higher safety factor.