Auricularia auricula is a common congenital auricle malformation, which is caused by incomplete formation of helix or excessive development of concha cartilage in embryo. Blow-type ear plastic surgery has little trauma, and patients who generally require to improve the shape of auricle can operate. In order not to affect the normal psychological development of children, surgery can be performed at the age of 5-6. At this time, the auricle is only a few millimeters different from that of adults, and the operation has little effect on it. Bilateral auricle plastic surgery should be completed in one operation.