Objective:To explore the risk factors associated with stress disorder. Method:Forty-three patients with stress disorder and forty-four survivors from trauma were investigated with self-editor questionnaire for stress. Results:Among the 11 items examined,significant associations were found in 8 risk factors between patients and controls. Conclusion:It is demonstrated that many factors have much impact on individual's response to stress,including pre-trauma predispostiton and after-trauma supports.