Chest interferes self-causes pain and patient irritability, and may be associated with facial injuries, which interfere with the patient's ability to cooperate with non-invasive ventilation (NIV) with a mask. High-flow nasal cannula (HFNC) allows oxygen to be heated to body temperature, saturated with water, and delivered at high flow rates. HFNC has many benefits including improved mucociliary clearance, better ventilation perfusion ratios, increased oxygenation, reduced work of breathing and inspiratory effort, increased end-expiratory lung volume, lowered respiratory and heart rates, and reduced mucosal injury. Unlike NIV, it does not impede mobility, oral intake, or speaking. To improve the prognosis of patients with severe chest trauma, early and continuous application of NIV can indeed reduce the need for intubation and shorten intensive care unit length-of-stay. HFNC is used in the early stage of hospitalization, the use of HFNC is safe, it is a well-tolerated alternative to continuous positive airway pressure (CPAP).