Wind ear, also known as fan ear, is a congenital malformation, mostly bilateral or unilateral. The concave-convex relationship between the helix and the navicular fossa disappeared when the upper end of the auricle was more than 2cm away from the cranial side. Sometimes the cranioauricular angle is too large, and the auricle is flat outward and forward. Hongkang uses a unique technique to correct ear plastic surgery, which has a quick recovery and obvious effect. Most of the ears are congenital malformations, with both sides, and the degree may be different. The auricle has basically developed after the age of 6, so the ear correction operation can be carried out in childhood. The structure of auricle is not complicated, but it is not easy when it comes to shape correction. Ear pulling usually refers to the operation of pulling the ears protruding to both sides closer to the skull. For most patients, surgery is performed at the age of 4- 14. At the age of 4, the human ear is fully developed. The earlier the operation, the less ridicule and pressure the child receives. Ear plastic surgery is also feasible for adults, and there is generally no more risk for older patients. (1) Infection: It is a serious complication of ear pulling operation. Light affects the cosmetic effect, and severe cases have full auricle periostitis, resulting in auricle necrosis and deformity, with serious consequences. Preventive measures: In order to prevent infection complications after ear pulling, anti-inflammatory measures must be strengthened before, during and after operation. Especially if the auricle hematoma is not handled properly after operation, it can cause secondary infection, which makes the surgical effect completely wasted. (2) Correcting bilateral auricle asymmetry: Bilateral auricle asymmetry after suture is mostly due to preoperative design errors. Preventive measures: (1) Analyze the shape of auricle comprehensively before operation, make appropriate design scheme, closely observe during operation and follow up regularly after operation; (2) For what has happened, one side can be corrected, and a second operation can be performed 1 year after operation.