Pneumonia caused by cerebral infarction is a more serious condition, which needs to be actively clarified for the cause and actively treated. Cerebral infarction causing pneumonia may be due to the cerebral infarction site involved in the brain stem, resulting in impaired swallowing function, easy to choking, aspiration when eating, causing aspiration pneumonia, so that the respiratory function is impaired, resulting in the inability to voluntarily discharge sputum, lung infection further aggravated, when the sputum is thick, and may even appear dyspnea, hypoxemia, respiratory failure and other life-threatening. Cerebral infarction leads to impaired limb movement, prolonged bed rest, decreased immunity, and susceptible to fallout pneumonia, plus the consumption of the organism by the disease itself, which is a more serious situation. When there is a cerebral infarction combined with pneumonia, it is necessary to timely and rationally treat under the guidance of the doctor to prevent and control the progress of the disease.