Abstract: Objective To explore the relationships between parental rearing patterns,social support and personality disorder among prisoners for the prevention of crime.Methods With stratified random sampling,805 prisoners in Shaanxi province prison and Henan province prison were investigated with Personality Disorder Questionnaire,Parental Rearing Patterns Scale,and Social Support Scale.Results The total prevalence of borderline personality disorders was 38.76% and the score of personality disorder in Personality Disorder Questionnaire was 65.36±12.59.The score of feeling and understanding,punishment,overladed interference,preference,rejection and denial,and overprotection in Parental Rearing Patterns Scale was 41.27±10.54,23.46±6.58,22.52±6.21,10.15±4.56,12.52±5.41,and 12.47±2.75,respectively,and the feeling and understanding,overprotection,rejection and denial,punishment,and preference of mother in Parental Rearing Patterns Scale was 48.82±10.23,38.12±8.16,17.42±5.38,15.86±6.25,12.19±3.43,respectively.The score of objective support,subjective support and the usage of support was 6.48±2.26,17.25±4.13,and 6.76±1.42.Positive significant correlations were found between personality disorder and punishment of parental,rejection and denial of parental,overprotection of father,and preference of mother(P<0.05 for all) and significant inverse correlations were found between personality disorder and warmth of feeling and understanding of parents(P<0.05 for all).There were correlations between personality disorder and subjective support and the usage of support(P<0.05).Structural equation showed that parental rearing patterns could either directly affect personality disorder or produce indirect effects via subjective support(χ²=423.51,P<0.05; goodness-of-fit-index=0.90,normed fit index=0.91,confirmatory fit index=0.92,and root mean square error of approximation=0.26).Conclusion Parental rearing patterns and social support affect personality disorder in prisoners.