The invention relates to a mitral valve repair stent which comprises a skeleton and a valve assembly, the skeleton comprises an upper limiting piece, a middle fixing piece and a lower limiting piece, the middle fixing piece comprises a V-shaped supporting section, a first sleeve and a second sleeve, the V-shaped supporting section is connected with the lower end of the first sleeve and the lower end of the second sleeve; a front wing and a rear wing are correspondingly arranged on the front side and the rear side of the top of the valve assembly, the upper limiting piece comprises a first limiting curve section located above the front side and a second limiting curve section located above the rear side, the first limiting curve section and the second limiting curve section are connected with the upper ends of the first sleeve and the second sleeve on the left side and the right side respectively, and the middle parts of the first limiting curve section and the second limiting curve section are respectively concave inwards to form a front V-shaped connecting section and a rear V-shaped connecting section which are correspondingly connected with the front wing and the rear wing. The mitral valve repair stent has the advantages that after the stent is improved, the action on the atrial wall is small, the self-adaptive attaching and anchoring effect at the valve ring is good, the improved valve assembly is good in compliance and is matched with the improved stent, better closing performance is achieved, the complication probability is low, and the postoperative effect is good.