The best time to treat cerebral hypoxia is within six minutes after the occurrence of cerebral hypoxia, because if the brain is hypoxic for more than 6-8 minutes, irreversible ischemic brain necrosis will occur and the nerve cells of the brain will die. The nerve cells of the brain are permanent cells, and once they die, they cannot be regenerated, and the corresponding neurological functions of the brain will be lost. Patients will exhibit a series of functional neurological symptoms due to ischemia and hypoxia in the brain. This disease is very serious, and comprehensive treatment, early treatment and adequate treatment are currently emphasized. Immediate oxygen supply should be given in the first instance to control cerebral edema, including the application of mannitol and glucocorticoids, synergistic human albumin, maintenance of normal blood pressure, prevention of seizures, active neurotrophic and cerebral protective treatment, and oxygen radical scavenging therapy.