Craniocerebral injury is a common trauma in the incidence of trauma, second only to the limbs of the common trauma. The cause of the injury is violence directly or indirectly on the head: usually common in traffic accidents, work injuries, foot falls, etc.; wartime in the formation of high-pressure gas wave blasts, fortifications or building collapse and firearms, sharps and other injuries. Injury is divided into closed and open two kinds. Symptoms caused by the injury are various, mainly in cognition (memory, attention, orientation, understanding and judgment, etc.), behavior, emotion, speech, perception, movement and so on.