The alar hypertrophy, the incision of this big nose plastic surgery is located inside the alar groove and the alar free edge, and the operation of alar reduction is more convenient. Because the nose is in a prominent position on the face, alar reduction surgery removes part of alar tissue from vertical and horizontal directions, corrects alar length and reduces nostril circumference. After operation, the alar hypertrophy was significantly improved compared with that before operation, and the appearance of the whole nose was more harmonious, adding aesthetic feeling, and the scar of the surgical incision was less concealed, thus achieving good cosmetic effect. It should be noted that after the alar reduction operation, some small defects in the alar area will become obvious, such as the alar sulcus and the lower edge of the alar after operation. This plastic surgery method is Korean rhinoplasty. By carving the whole nose, adjusting the alar cartilage, even separating the alar cartilage from the upper arm cartilage, strengthening the nose column with autologous cartilage, and finally carving a beautiful nose with autologous cartilage. In addition, rhinoplasty can also achieve the effect of big nose plastic surgery. This method is to cut off the wider part of the nasal cavity, sew it down, and make the nose smaller, so that the shape of the nose will look good.