An adaptively positioned mitral valve closure plate blocker for repairing mitral regurgitation, comprising a suture and shaping ring (4.1) sutured on a mitral ring (2.1) and a closure plate (4.2) the closing plate (4.2) comprises a tongue-shaped plate and a strut (4.3) located at the top of the tongue-shaped plate and connected to the suture and shaping ring the closing plate (4.2) can be connected to the suture and shaping ring (4.1), being capable of flapping back and forth and twisting left and right. The suture and shaping ring is sutured on the valve ring (2.1) of the mitral valve (2) of a patient in a thoracotomy and open heart surgery, thus shaping the disease expanded mitral ring (2.1), and supporting the closing plate (4.2) when a heart contracts and valve leaflets close, the closing plate (4.2) flaps and twists depending on the position of a regurgitation opening at the free edge of the valve leaflets to realize adaptive positioning of the closing plate (4.2), so that the closing plate (4.2) is at the free edge when two valve leaflets are closed, covering the regurgitation opening, and is tightly attached to the free edge of the valve leaflets, reducing or avoiding regurgitation of the mitral valve (2).Ce corps docclusion à plaque de fermeture de valvule mitrale sadaptant automatiquement au positionnement du reflux en vue de la réparation de la valve mitrale comprend un anneau de suture (4.1) et une plaque de fermeture (4.2) susceptibles dêtre cousus sur lanneau (2.1) de la valvule mitrale. La plaque de fermeture (4.2) comprenant une plaque en forme de languette ainsi quune tige de support (4.3) reliée de manière à osciller de lavant vers larrière et se tordre de gauche à droite sur lanneau de suture (4.1) Le chirurgien réalisant une opération à cœur ouvert avec ouverture de la poitrine coud lanneau de suture (4.1) sur lanneau (2.1) de la valvule mitrale (2) dune personne malade, avec pour effet de permettre lexpansion complète de lanneau (2.1) de suture e
