The invention discloses a lock type stitch continuous suture method double-lid blepharoplasty, wherein upper eyelids are turned over after double-lid lines are marked on the upper eyelids, surgical operations are done under direct vision, the needle inlet depth is easy to master, and a levator aponeurosis is precisely sutured on the upper edge of a tarsal plate. Levator aponeuroses on upper eyelid skins and the upper edge of the tarsal plate are connected in a line shape, cutting force of suture lines to tissues nearly is zero, can not affect to build the connection between skins and the levator aponeuroses, and square embedding lines compactly and solidly bound the tissues which comprise the levator aponeuroses, orbicularis oculi muscles and dermis and the like, are more serious in postoperative inflammatory reaction, are wide and firm in bounding range and steady and durable in double lids effect, and are not easy to loss.