The present disclosure relates to the technical field of medical instruments. Disclosed is a system for repairing valve leaflets in minimally invasive surgery, including a delivery device and a restoration component. The delivery device can perform a linkage release operation； the delivery device comprises an operating handle, a positioning tube, an outer tube clamp, an outer delivery tube, a delivery needle and a pushing tube； and the operating handle comprises a pull rod, a push member, a handle, a release button, a sliding member and a safety button. The system for repairing valve leaflets of the present disclosure is suitable for repairment of the valve leaflet in minimally invasive surgery, which is easy to operate and can realize release and repair operations by one step, and at the same time can reduce operation difficulty, intensity and patient pain in the surgery, improving the successful rate of the surgery.
