1, light ( grade Ⅰ ) (stay in the emergency room for 24 hours; observe consciousness, pupils, vital signs and changes in neurological signs; skull X-ray, cranial CT examination if necessary; symptomatic treatment; explain to the family that there is a possibility of delayed intracranial hematoma. 2.Medium-sized (Grade II) Conscious patients should be kept in the emergency room or hospitalized for 48-72 hours, and those with consciousness disorders should be hospitalized; observe changes in consciousness, pupils, vital signs and neurological signs; take cranial X-ray and head CT examination; provide symptomatic treatment; if there is any change in condition, review head CT and prepare for surgery at any time. 3.Heavy (Grade III) (hospitalization or intensive care unit if possible; observe changes in consciousness, pupils, vital signs and neurological signs; use dynamic head CT monitoring, intracranial pressure monitoring or brain evoked potential monitoring; actively deal with hyperthermia, agitation, epilepsy, etc., and give treatment such as dehydration to maintain good peripheral circulation and cerebral perfusion pressure if there are manifestations of increased intracranial pressure; pay attention to the care and treatment of comatose patients. In case of brain herniation, 20% mannitol 250ml and tachyphylaxis 40mg should be given intravenously.