Objective To test psychometric properties of the PTSD checklist-civilian version(PCL-C) among junior school students from earthquake-hit region.Methods PC L-C Chinese Version, Rosenberg self-esteem scale and SCL-90 were utilized to assess 560 junior school students from earthquake-hit region.Results Firstly,the internal consistency of the total scale and three subscales were qualified, the coefficient alphas were 0.890,0.734,0.789 and 0.722, respectively; 307 participants, from the first samples, engaged in the second test two months after the first assessment.The test-retest stability was re-experiencing 0.40(P ＜ 0.01 ) ,avoidance 0.45 (P＜ 0.01 ), hyper-arousal 0.448 (P ＜ 0.01 ), total scale 0.535 (P ＜ 0.01 ), respectively.Secondly, the results of criteria validity showed PCL-C and its three subscales had negative correlation with self-esteem (r =-0.192 ～-0.299, P ＜ 0.01 ), and had positive-related with SCL-90 and its subscales of depression, anxiety, and psychotic (r=0.563 ～0.775, P＜0.01 ).Finally,the results of empirical validity revealed that based on the score on PCL-Ccould differentiate those people who have significant different scores on SCL-90.Conclusions The PCL-C hadgood reliabilities and validities,which could be used to assess the severity of PTSD.