Diabetic patients suffering from cerebral infarction are recommended to register with neurology. Patients with cerebral infarction should be given symptomatic treatment such as anticoagulation, antiplatelet aggregation, fibrillation, blood circulation, oxygen free radical scavenging and cerebral protection if they are in acute stage. If the patient’s blood glucose is high, the diabetic department can be consulted. In the acute stage of cerebrovascular, it is recommended to control blood sugar within the ideal range; if blood sugar is too high, it will affect the prognosis of cerebrovascular. If the patient is in the post-infarction phase, it is recommended that the patient initiate cerebrovascular secondary prevention, which includes regular blood glucose control. For fasting blood glucose, it is recommended that diabetic patients control it at about 8 mmol/L, and for postprandial blood glucose, it is recommended that it be controlled at about 11.1 mmol/L. If blood glucose is too high, it can lead to thickened blood, aggravate atherosclerosis, and also lead to recurrence of cerebrovascular disease. For patients with cerebral infarction who also have diabetes, it is recommended to consult the neurology department, which will initiate guidance on secondary prevention for patients with cerebrovascular disease.