Aortic coarctation type I is very serious because type I of aortic coarctation mainly involves the ascending aorta, which may cause rupture of the ascending aorta and lead to the patient’s death. In case of aortic coarctation type I, the first step is to rush to the hospital as soon as possible to clarify the site, size and severity of the aortic coarctation by coronary as well as thoracic and abdominal aortic CTA, and to decide the next treatment plan based on these results. Aortic coarctation type I requires surgical treatment, which involves the replacement of an artificial vessel in the ascending aorta, replacing the unhealthy vessel itself with an artificial vessel. After the surgery, cardiotonic and diuretic drugs should be taken for a long time, and the dosage of the drugs should be adjusted according to the results of the review.