This is a descriptive Cross-sectional study with the purpose of determining the frequency and the most Common types of personality disorders in women prisoners in the two cities of Tehran and karaje. 200 subjects randomly selected and evaluated by two questionnaires. One for collecting demographic information and the other a clinical Multi axial questionnaires introduced by Millan. The collecting data analysed by the software, spss. The total frequency of personality disorders in the subjects was 60% and the self-defeating (Masochistic) (42.5%), avoidant (40.8%), passive-agressive (26.7%), antisocial (25%), and borderline (24.2%) were respectively the most frequent types of the disorders which were found.