166 teenagers who experienced the Wenchuan earthquake were investigated by revised PTGI (Posttraumatic Growth Inventory)、CD-RISC(Conner-Davidson Resilience Scale) and self-designed questionnaire on traumatic exposure and the relationship of traumatic exposure,resilience and posttraumatic growth was discussed. The Results show that PTG was significantly different between genders, with PTG of female higher than that of male. One dimension of traumatic exposure, the subjective scared level can positively predict PTG. Furthermore，resilience strengthens the relationship between subjective scared level and PTG. It also strengthens the relationship between another dimension of traumatic exposure, housing damage level and PTG.