This study represents the first longitudinal examination of the trajectory of overgeneral memory (OGM) in children and how this relates to psychopathology immediately after trauma exposure. We recruited fifty 7- to 17-year-olds who had experienced an accidental injury that resulted in hospital admission. Assessment of psychological symptoms, OGM and cognitive processes proposed to drive OGM was completed at three points over a 6-month period post-trauma. We found that OGM was not related to depressive symptoms and that time since trauma exposure moderated the relationship between post-traumatic stress disorder symptoms and OGM. Although no relationship was found in the first 3months following trauma, OGM was protective against post-traumatic stress disorder symptoms at 6months post-trauma. Despite models of OGM (e.g. Williams et al.,) emphasising the role of rumination and executive control in explaining OGM, we found no evidence that they were related to OGM.