The objective of this study was to investigate the impact of trauma exposure on the posttraumatic stress symptomatology (PTSS) of children who resided near the epicenter of the 2008 Wenchuan earthquake. The mechanisms of this impact were explored via structural equation models with self-esteem and coping strategies included as mediators. The findings suggested that the effect of trauma exposure was partially mediated by self-esteem, which subsequently affected coping strategies and finally determined PTSS. These results imply that self-esteem and coping strategies may impact children's resilience to trauma exposure. (Contains 1 figure and 2 tables.)