Abstract: Objective The study aimed to assess the incidence and prevalence of injury among school students in Dalian,in order to provide scientific basis for making appropriate intervention measures.Methods All injured students visited emergency rooms in 3 injury surveillance sentinel hospitals for the first time from 2006 to 2014 in Dalian were collected and analyzed.Results Totally 15 002 cases of injured students were collected,of which 71.0% were male and 29.0% were female,with sex ratio of (2.4:1).The injuries occurred mostly in school (37.8%),public place (17.9%) and road/street (17.6%).The peak time of injury were 12pm and 5pm in one day.Fall was the leading cause of injuries (40.1%),followed by blunt injury (25.8%),cutting (15.6%).The damage mostly occurred in the upper limbs,lower limbs and head.The most common types of injury were bruise/scratch injury (45.7%),sharp/open injury (24.4%) and strain injury (18.8%).Most injuries were minor injury (81.5%),followed by moderate injury (17.8%) and severe injury (0.7%).82.7% of the injury was accidental,intentional injury accounted 16.0% and self-injury accounted 0.6%.Conclusion Effective safe education should be carried out to reduce the occurrence of injury for the sake of child and adolescent health.