Impulsivity among psychiatric patients appears to be a growing problem and is a subject of importance and concern to clinicians and researchers. Impulsivity has highlighted the importance of the defining characteristics on various psychiatric disorders and is a key component in the clinical risk assessment of anger and aggression. This study aimed to assess the psychological predictors of impulsivity (social support, depression) among psychotic patients. The study was carried out in the psychiatric department in Assiut psychiatric mental health hospital. The hospital is serving Assiut city and Upper Egypt governorates.The study sample comprised 150 psychotic patients (36 schizophrenia, 49 depressions and 65 manias) 95 males and 55 females attending to psychiatric unit within a period of six months from November to April 2012. . Five tools were used for data collection: namely: Sociodemographic Data Structured Interview schedules:, Impulsivity scale, Brief psychiatric rating scale , Beck depression inventory scale and Norbeck social support questionnaire (NSSQ):. The main results yielded by the study proved that, concerning the level of impulsivity, the majority sample had moderate impulsivity, highest among patient's aged from 30 to 40 years old, were males, were secondary level of education and were single. no have work , patients were diagnosed mania and depression , while the majority of them were have schizophrenia .The study recommended developing and implementing psychosocial program to decrease impulsivity among psychiatric patients. , using an appropriate coping measurement can help nurses and patients identify specific coping styles.