Occlusive bronchitis is actually also known as occlusive fine bronchitis and constrictive fine bronchitis, and it is a relatively uncommon disease. Its susceptibility to a series of more serious consequences, if not detected early and timely symptomatic treatment, etiological treatment, is likely to lead to varying degrees of alveolar occlusion, resulting in serious impairment of pulmonary ventilation and air exchange function. Generally common pediatric adenovirus causes respiratory syncytial virus, causing pediatric fine bronchitis can cause the possibility of asphyxia. In addition, after lung resection and transplantation for various reasons, it may cause pulmonary rejection, which manifests as occlusive bronchitis causing dyspnea, wheezing, shortness of breath, and may lead to the occurrence of respiratory failure and heart failure.