Abstract: Objective To provide the mental intervention therapy for the survivors of Wenchuan earthquake by investigating their psychic and mental traumaMethods The psychic and mental conditions of survivors in 4 severe earthquake-hit areas of North Wenchuan were investigated in July 2008 with questionnaires and on spot interview using SCL-90 and post-traumatic stress disorder（PTSD）-SS,and then analyzed using the SPSS softwareResults The average PTSD score was 41.93 for the survivors and 48.31% of them might progress into PTSDConclusion The survivors should receive mental intervention therapy in order to reduce their trauma rusluting from PTSD.