If Alzheimer’s patients do not swallow their meals, it may affect the patient’s diet and cause malnutrition. If the above symptoms cannot be improved in time, the gastric tube can be lowered and retained for nasal feeding diet, mainly fluid and semi-liquid food, and at the same time, balanced nutrition should be provided to ensure the necessary nutrients for the body. Patients must pay attention to the regular replacement of the gastric tube, which is generally recommended every two weeks. When nasal feeding, the patient must be allowed to take a sitting position, and after nasal feeding, try to keep the patient in a sitting position for 30 minutes before lying down, in order to prevent the occurrence of aspiration pneumonia.