How long a 70-year-old cerebral infarction patient can live is mainly related to the severity of the disease at the time of the onset of the disease, there is no definite time, serious patients may die within 2 weeks, the condition is mild, the treatment is timely and effective patients life expectancy can not be affected. The severity of cerebral infarction is closely related to the size and location of the infarcted area. If it is a large infarction in the cerebral hemisphere, patients will often suffer from bleeding secondary to the infarcted area, and excessive intracranial pressure will lead to cerebral herniation, and then patients will often lose their lives within 2 weeks of the onset of the disease. In case of severe cerebral infarction with severe sequelae requiring long-term bed-ridden patients, family members need to take good care of them to avoid life-threatening sequelae such as lung infection, deep vein thrombosis, pressure sores, etc., and to prolong the patients’ life. If the infarct is small, it is not life-threatening, and the patient may recover completely after treatment, or only one side of the limb will be left with hemiplegia as a sequela. This level of general will not affect the patient’s life expectancy. It is recommended that patients seek timely medical treatment after the occurrence of cerebral infarction.