Protruding aortic arch is an image result seen during chest X-ray, which shows that the aortic arch of the heart is partially widened and tortuous, losing its original normal shape, indirectly reflecting cardiac degeneration and atherosclerosis, and an electrocardiogram and cardiac ultrasound should be done to understand the extent of the lesion. Protruding aortic arch mostly represents hypertension and aortic valve disease. If there are palpitations, chest tightness, shortness of breath and other discomfort, intervention treatment should be carried out to trace the cause of the disease and treat it symptomatically. If there is no clinical symptom manifestation, only the protruding aorta seen in chest X-ray, it can be observed regularly. As the blood vessels gradually harden with age, the arterial elasticity decreases. The diet should be as light as possible, low in salt and fat, actively control the three highs, exercise appropriately, and obese people should lose weight and abdominal circumference to slow down the progress of vascular sclerosis.