This study explored whether resilience moderated the relationship between various symptoms of posttraumatic stress disorder(PTSD) and antisocial behavior. Ten months after the Jiuzhaigou earthquake, 621 middle school students in Jiuzhaigou were assessed using the following systems: Measures of Traumatic Exposure Questionnaire, PTSD Checklist for DSM-5, Child Behavior Checklist,and Resilience Scale in this survey. The results showed that: 1) intrusion symptom, hyperarousal symptom, negative alterations in cognitions and mood symptom, and PTSD had significantly positive effects on antisocial behavior; 2) resilience played a significant moderating role in the effects of intrusion symptom, hyperarousal symptom, and PTSD on antisocial behavior; 3) intrusion symptom,hyperarousal symptom, and PTSD symptoms were associated with more antisocial behavior for individuals with lower resilience.