Aspiration pneumonia is a serious disease. When aspiration pneumonia occurs, first of all, it often induces obvious symptoms of infection, and the patient may experience coughing, coughing up sputum, chest tightness, chest pain, chills, fever and other discomforts. Secondly, if inhalation of chemical substances leads to aspiration pneumonia, it can also induce acute respiratory distress syndrome, respiratory failure, the patient’s condition is more serious, and can be life-threatening. In addition, the infections caused by aspiration pneumonia are mostly mixed infections, which can develop into severe pneumonia if not handled in time, thus affecting the patient’s cardiopulmonary function and secondary to the functional damage of multiple organs such as the liver and kidneys. In addition, aspiration pneumonia can easily cause pulmonary atelectasis, lung abscess, sepsis, etc., which makes the degree of infection more difficult to control. For some elderly patients or patients with central nervous system disorders, repeated occurrence of aspiration pneumonia may also aggravate the existing underlying diseases and worsen the condition. Therefore, aspiration pneumonia is a serious disease and should be actively prevented and treated.