Surgical treatment for rheumatic heart disease includes two methods: interventional surgery and surgical surgery. The indications for interventional surgery are moderate or severe mitral stenosis, a mitral valve area less than 1.5 square centimeters, accompanied by symptoms, cardiac function classification of grade II or higher, or moderate to severe mitral stenosis without symptoms but accompanied by pulmonary hypertension, with a pulmonary artery pressure greater than 50mmHg. Valve morphology suitable for percutaneous intervention means that the valve still has decent flexibility at midnight, with no significant calcification and subvalvular structural disease, no thrombus formation in the left atrium, and no moderate or severe mitral regurgitation. The indications for surgical surgery include moderate or severe mitral stenosis accompanied by symptoms of heart failure, cardiac function between grade III and IV, and patients who are unsuitable for percutaneous mitral valvuloplasty.