Objective: To investigate the relationship between childhood psychological abuse and neglect experiences and undergraduates’personality. Methods: 216 undergraduates were investigated with Child Psychological Abuse andNeglect Scale (CPANS) and 16PF. Results: ①45 testees(20.83% of the total) reported childhood psychological abuse experiences;88 testees claimed psychological neglect ( 40.74% of the total number). No significant statistical difference wasobserved in both psychological abuse and neglect between students of different sexes ( P>0.05) . ②The average scores of psychological abuse sub-scale scold and threaten dimension of the male students were higher than those of the female ones(P<0.05 ). ③The scores of personality traits A, C, F, G, H, Q₃, X₂ and X₃ of the abused students were lower than those of the unabused students (P<0.05 ), while L, O and X1 were higher in abused students when compared with the unabusedones(P<0.05 ). ④The scores of child psychological abuse and neglect had negative correlations with the scores of personality traits A, C, E, F, G, H, Q₃, X₂ and X₃, and had positive correlations with the personality traits L, O ,Q₄ and X1 (P<0.05).Conclusion: ①Child psychological abuse and neglect are common experiences among undergraduates, which appear moreseverely in male undergraduates than in female ones. ②Child psychological abuse and neglect have significant negative correlations with lots of positive personality traits of undergraduates; And have significant positive correlations with some negative characteristics.