The mortality rate of type II respiratory failure can reach about 80% in neonates and about 50% in adults, according to clinical data. Type II respiratory failure is relative to type I respiratory failure and is mainly characterized by low oxygen levels and high carbon dioxide levels in the blood, resulting in hypercapnia and hypoxemia. It is a relatively serious type of respiratory failure because of the impaired ventilation and air exchange function of the lungs due to various reasons, resulting in lack of oxygen and carbon dioxide retention in the body. Respiratory distress and even blurred vision, irritability, pulmonary encephalopathy, and gastrointestinal bleeding may occur, and may be accompanied by heart failure and hemorrhagic shock, leading to acute multi-system organ failure and death. If there is no multi-organ failure such as heart failure, but only simple type II respiratory failure, most patients can achieve the same survival cycle as normal people with standard treatment and usual care. However, the mortality rate is relatively higher in neonates than in adults.