At present, except for the width of double eyelids, there is no good repair method, and other cases can be done with double eyelid repair surgery. In order to successfully repair the double eyelid, it is necessary to redesign the incision line of the double eyelid and remove all the scars of the original incision as far as possible, so there are many places to pay attention to before the operation. In addition to preoperative preparation, postoperative nursing is also a key factor to determine the failure of double eyelid repair.