Objective To summarize the clinical characteristic and therapeutic efficacy of lacunar infarction after craniocerebral trauma.Methods 37 cases of children with lacunar infarction after craniocerebral trauma from December 2000 to December 2004 were retrospectively analyzed.Results All of the 37 sufferers received the expectant treatment in hospital.Among the 37 cases,30(81.1%) were well-healed and 7(18.9%) were light maimed when leaving hospital.The clinical symptom of the 29 sufferers completely faded and 7 patients who were light maimed recoverd during the follow-up visit for 6 to 12 months.Conclusions Lacunar infarction after craniocerebral trauma is the syndrome of the damage of the nervous system.Its' major manifestation is the disorder of half body movement.Children with light craniocerebral trauma get this kind of disesase easily.CT scanning and regular re-X can predominantly raise the of the final diagnosis.Most of the sufferers can receive good long-term therapeutic efficacy.