A heart valve repair device comprises: a sealed sheath (1); a catcher (2) located at a distal end of the sealed sheath (1) for catching and fixing a heart valve cusp (15); a puncture needle (3) located in the sealed sheath (1) for puncturing the heart valve cusp (15) caught by the catcher (2); an artificial chordae tendineae (4) capable of puncturing into the heart valve along with the puncture needle (3) and being for repairing the heart valve; and a handle (5) located at a proximal end of the sealed sheath (1) and used to operate the heart valve repair device.
