1, thread embedding method, which directly embeds the suture (or polymer suture) between the skin and the meibomian, so that the skin of the upper eyelid adheres to the meibomian to form a double eyelid. 2. Double eyelid incision is a permanent double eyelid operation, which removes slack skin, orbicularis oculi muscle and fat by incision, and directly sutures the skin with orbicularis oculi muscle or levator palpebrae aponeurosis under direct vision to form double eyelid. 3, line pressing method, similar to sewing method, is to sew mucosa and skin to form double eyelids. Because of the continuous suture of the upper eyelid, the vascular reflux is blocked, so the upper eyelid is obviously swollen and swollen slowly, and the stitches need to be removed, and the double eyelid may disappear. 4. Before Han minimally invasive catgut embedding method, take a little bit to remove a small amount of fat, and then perform catgut embedding double eyelid method.