This study was done the aim of Comparison between demography’s traits, personality’s traits and life quality in normal couples and couples in the threshold of divorce, so 57 women and 33 men on the threshold of divorce (90) were selected by the accessed sampling, voluntary and snow ball methods. Couples on the threshold of divorce should have series of traits: having chronic conflict, referring to justice’s family counseling center, time passing of their marriage, having literacy to read and write and having desire to participate on the study. For selecting normal couples, university students, familiar persons and applicant couples of divorce were used. Selected sample was studied by 1. Five factor’s personality questionnaire NEO-FFI 2. WHOQOL-BREF life Quality questionnaire, 3. demografy questionnaire. The result showed that demography traits of couples on the threshold of divorce were completely different from normal couples in all variables related to divorce. There was a meaningful difference between traits of normal couples and couples on the threshold of divorce (P £0.001).The sco??? of neuroticism subscale of divorced couples were more than normal couples (P£0.01). There was a meaningful difference between normal couples and couples on the threshold of divorce in quality of life (P£0.0001). life quality’s score in couples on the threshold of divorce was lower than normal couples. Also result showed that there was a reverse and meaningful relationship between neuroticism and life quality (P£0.001), direct and meaningful relationship between extroversion and life quality (P£0.001), direct and meaningful relationship between agreement and life quality in birnak ciyokes (P£0.004), direct and meaningful relationshp between openness and life quality in couples on the threshold of divorce (P£0.007) and there was a direct and meaningful relationship between conscience and quality life (P£0.05). According to results of this study, counselors and family therapist can pay attention to these factors in pre-counseling marriage, or to reduce conflict of couples.