Postoperative pulmonary infection after aortic coarctation can usually be cured after standardized anti-infection treatment, but postoperative aortic coarctation is often combined with dysfunction of other organs in addition to pulmonary infection, making it more difficult to treat. Aortic coarctation surgery, which must be completed through open chest operation and extracorporeal circulation, takes a long time and causes great surgical injuries, and post-operative multi-organ functional injuries such as heart, lungs, brain, liver, kidney, etc. may occur, and there are many complications, which need to be admitted to the intensive care unit to strengthen the treatment after the operation. Lung infection after aortic coarctation is likely to be multiple pathogenic bacterial infection in the intensive care unit, with high drug resistance, often requiring high-level antibiotic treatment, and relatively slow recovery, plus other comorbidities or complications, then the treatment is more difficult, but after standardized anti-infective treatment, most of them can be recovered.