Traumatic brain injury (TBI) children have their own characteristics of energy metabolism. Reasonable nutrition support on neurosurgery patients is very helpful for the postoperative recovery and the prevent of the complications. Reasonable nutritional support  based on early assessment of the gastrointestinal function, is the key factor for successful treatment. In this pape, energy expenditure in TBI children, time and route of nutrient Intake,and acute gastrointestinal injury (AGI) were reviewed in hope to achieve more rational and standardized management for TBI children, and provide more reasonable advise to control AGI.