Injuries caused by external violence acting directly or indirectly on the head are called craniocerebral trauma. Most commonly seen in falls, traffic accidents, falls, various sharp and blunt objects on the head injury, industrial and mining accidents, natural disasters, explosions, firearm injuries, etc.. Usually account for 10-15% of all parts of the injury, about 15-20% in wartime, after the limb injury, ranking second, while the mortality rate is the first. Traumatic brain injury is also divided into two categories: the first is the primary craniocerebral injury: a moment of external violence caused by brain contusion, brainstem injury, fractures, etc., this injury, on the current level of medical care is no way to reverse, what needs to be done is to maintain the patient’s basic vital signs, so that it remains stable, slowly recover. The second is secondary craniocerebral injury: after the accident, because of the primary craniocerebral injury, resulting in subsequent intracerebral hemorrhage, meningeal hemorrhage, cerebral edema, etc., the amount of bleeding does not matter, the blood out of the formation of more hematoma compression of the brain important structures, the formation of brain herniation, life-threatening, which requires timely and appropriate rescue. Or because of primary craniocerebral injury caused by pneumonia, gastrointestinal bleeding and other complications. These secondary craniocerebral injuries must be treated by timely and appropriate surgery, anti-infection, and decompression of the skull. Secondary craniocerebral injury, if not rescued in a timely manner, improperly, will also lose the opportunity. On-site first aid is critical 1, to maintain sedation: head injury even without coma should be fasted and limited water, avoid emotional agitation, do not move, waiting for the arrival of professional emergency personnel. If the scene is dangerous and needs to be moved away, try to move the patient as far as possible, avoid one person tugging two arms, one person tugging two legs moving, will cause further aggravation of the existing spinal cord injury, the patient may suddenly stop breathing, or even death. The correct method is three people together to help the patient pan, one person to support the head, shoulder, one person to support the waist, hip, one person to support the knee, calf. 2, to quickly stop the bleeding: should be immediately in place, using clean, dry clothes or fabric for pressure bandaging to stop the bleeding. Do not pull out the injury-causing object at the scene, so as not to cause haemorrhage. If there is brain tissue prolapse, use a bowl as a support and then add a dressing wrap to ensure that the prolapsed brain tissue is not compressed. 3, to keep the respiratory tract unobstructed: after the patient is unconscious, the back of the tongue, phlegm and vomit will block the respiratory tract, there will be snoring sounds, respiratory obstruction can cause asphyxiation death, the application of hands on both sides of the patient’s jaw angle to hold his jaw up, remove the oral foreign body to keep the respiratory tract unobstructed. 4, to maintain the stability of vital signs: after the arrival of professional first aid personnel, first after a judgment of the injured person’s general condition. Check whether the injured person is conscious and can speak, and then check the blood pressure, pulse and breathing, which are vital signs. The normal blood pressure is 120/80mmHg, high pressure if lower than 80, it is shock. Breathing is 16-20 times a minute, if only 8-10 times, indicating that there is a problem with the brain, if the pulse is fast to 120 times a minute, is also a sign of shock. 5, do not miss the arms, legs, chest, abdomen, etc. Choose the right hospital, seize the time to save lives Choose a hospital to master two principles: first, near, seize the time to save the traumatic brain injury, time is life; second, the hospital with conditions, that is, the hospital with emergency CT and neurosurgery. The hospital to save the level of heart is also a scope of consideration.