Patients with cerebral infarction who do not sleep and talk nonsense at night are experiencing organic mental disorder. Patients with cerebral infarction often have sleep disorders, mainly manifested as sleep inversion, more sleep during the day, less sleep or no sleep at night, and if they appear to talk nonsense and have visual hallucinations or auditory hallucinations, they have organic mental disorders, which may be related to the frontal and temporal lobes involved in cerebral infarction. In this case, we need to improve the cranial magnetic resonance examination to clarify whether the patient has a new cerebral infarction, or the progress of aggravation, symptomatic treatment, you can use antipsychotic drugs, currently recommend new antipsychotic drugs, such as olanzapine, starting with a small dose of 1.25 mg, 30 minutes before bedtime at night, with the minimum dose to control the patient’s symptoms to maintain, if the symptoms are reduced, you can Consider gradually reducing the dose and stopping the medication.