Mitral valvuloplasty restores the diseased mitral valve by repairing the leaflets, subvalvular tendon cords, and annulus, etc. Mitral valvuloplasty does not require the placement of an artificial heart valve and preserves the patient’s own valve. In terms of long-term results, mitral valvuloplasty has a higher long-term survival rate than mitral valve replacement and greatly improves the quality of life of patients after surgery, making it the most rational surgical procedure for mitral valve lesions. Han Lin, Department of Thoracic Surgery, Shanghai Changhai Hospital Mitral valvuloplasty is indicated for patients with mitral valve degeneration, ischemic heart disease, congenital mitral valve lesions, etc. It is also used for some rheumatic heart valve diseases. The majority of these patients can be corrected by mitral valvuloplasty. The technical requirements of mitral valvuloplasty are much higher than those of mitral valve replacement surgery, and although it was performed earlier in the international arena, the relevant techniques have been continuously innovated and improved, and the success rate of valvuloplasty is now significantly higher. The incidence of degenerative changes in China in recent years has increased significantly, mitral valvuloplasty technology has been carried out in some hospitals, our hospital carried out mitral valvuloplasty technology earlier, and now we can master the various forming techniques, through the operation of esophageal ultrasound examination, so that the success rate of mitral valvuloplasty is greatly improved, bringing good news for the majority of patients.