Thread-embedding suture double eyelid operation is to embed suture or polymer suture between the patient's skin and the tarsal plate, so that the upper eyelid skin and the tarsal plate adhere to each other to form double eyelid. Because there is no need for surgery, there will be no scar after operation, and the effect is very natural and true. This method is simple to operate, with little trauma, no scar, rapid swelling reduction and no need to remove stitches.