The purpose of this study is to determine the relationship between personality traits of parents and autism severity, empathy and organization of autism children. Design of this study is correlation type, sample of 40 parents who have autism children from 4 to 11 years old and they referred to Beautiful Mind Clinic and the autism Society in Tehran in 1392 and to exceptional children school in Babol and to the sun comprehensive treatment and rehabilitation center in Amol, available samples were collected through sampling method. Instruments used in this study are three questionnaires of personality trait of Neo (short form), questionnaire of quotient autism, questionnaire of empathy portion and organization of children. Test results analysis showed that: personality traits of parents significantly effect on changes in autism severity; the data shows that variables of personality traits of parents have predictive power of autism severity in children. Personality traits of parents significantly effect on changes in empathy, the data shows that variables of personality traits of parents have predictive power of empathy in children. Personality traits of parents significantly effect on changes in organization, the data shows that variables of personality traits of parents have predictive power of organization in children. Based on these findings it can be concluded that the personality trait of parents has significant relationship with all three variables that is autism severity, empathy, and organization.