The surgical principle of concealed ear is to restore auricle cartilage and make cranial ear groove. During the operation, after the ear shape appeared in the upper part of the helix, an arc incision line was made along the scalp area above the edge of the auricular cartilage, and the skin and subcutaneous tissue were cut according to the incision line, and the cartilage was separated from the soft tissue of the cranial side, and the cartilage was turned over and reset until the root of the concha formed a normal cranial ear groove, and then full-thickness or medium-thickness skin flaps were covered on the wounds behind the ear and the cranial side wall. The wound was filled with gauze, fixed with suture, and pressed with cotton pad bandage.