Schizophrenia is a disorder, which has the most regression in behavioural, occupational and psychiatry aspects, and it is also important for this patients. the main purpose of this study is to evaluate. The quality of life and global function of schizophrenia patients.

100 schizophrenia patients (with DSM-IV-TR) who had a history of at least 10 years from the beginning of the disorder were collected. Demographic characteristics, type of schizophrenia, living condition and the quality of life scale (QLS) including interpersonal relationship instrumental role, intra psychic foundation and common objects and activities, were filled. Patients’ general functions were evaluated with GAF.

In this study 67% were men and 51% were women. They were residual (55%), Paranoid (11%)and undifferentiated (33%) schizophrenia. They lived in institute (67%) and with their families (28%). The significant association were found to be between married and singles patients in instrumental role (F, 2, 97), P>./.5) but there weren’t found any association in other domains also the significant. Correlation were found between undifferentiated and paranoid patients in interpersonal relationship (F, 2, 97), P>./.5).but there weren’t any correlation in intrapsychic foundation and common objects and activities domains. Also there were significant association in GAF (F, 3, 98), P>./.5)between uneducated and educated participants. The Mean of five domains and genders didn’t have any association together.

Schizophrenia patients’ quality of life is low. which showed the value and reliability of Global Assessment Functioning that usually used for every psychiatrics’ patients for V axis clinical diagnosis and indicated the clinical value of this scale.