Cognitive behavior therapy(CBT) has proven to be an effective treatment for posttraumatic stress disorder(PTSD),which typically comprises psychoeducation,exposure,cognitive restructuring,anxiety management training.CBT has been applied for PTSD caused by assault,terrorism,road traffic accidents,combat,earthquake,etc.Eye movement desensitization and reprocessing has been proposed as an effective treatment for PTSD.However,a debate has been triggered by efficacy.Randomized controlled trial of CBT for PTSD must be conducted to enhance the validity of studies results.