The way to improve camel hump nose is to make an incision between nasal cartilage and alar cartilage in nostril for invisible separation, then cut off the hump on the back of nose, and then file the section of bone and cartilage with a bone file. Then, by narrowing the back of the nose and transforming the lower part of the nose, camel nose plastic surgery is completed. The improved extranostril approach of camel hump nose: firstly, a nostril margin incision is made at the junction of the middle 1/3 and the lower 1/3 of the nasal column and the front edges of the medial and lateral feet of the alar cartilage. Through the skin incision, the skin of the external nose is lifted to the lower edge of the nasal bone, and the periosteum is separated from the periosteum, muscle and skin on the surface of the nasal bone through the periosteum incision, and the nasal dorsum is completed under direct vision.