This paper examines the structure factor (Confirmatory) of a Persian Version of the State-Trait Anger Expression Inventory-2 (STAXI-2) in Iranian Clinical Sample. Sampel of this study consisted of 553 patients that referred to two psychiatric clinic in Tehran city between 86 - 89 years, (178 males and 375 females) between 17-66 years with the diagnostic group that were classified; anxiety disorders, mood disorders, obsessive-compulsive disorders, personality disorders, impulsive control disorder and phobia disorder with convenient sampling. After data collection, data were analyzed by Exploratory and confirmatory factor analysis, in the end, a questionnaire consisting of 48 item with five scales and four subscales; (the State Anger (internal state and external state), Trait Anger (Angry temperament and Angry reaction), Anger Expression-Out, Anger Expression- In and Anger Control) were excluded as the final questionnaire. Significantly differences were obtained in the factor structure of Iranian and American samples. In section of Stait-anger instead of three subscales-feeling of anger, verbal expression of anger and physical expression of anger, extrated the internal state and external state subscale. In section of trait anger by eliminating the 19 item was confirmed angry temperament and the angry reaction subscales. In section of Expression of anger, two scales of Anger Control–out and Anger Control –In loading on a first factor as Anger Control. Three item of anger Expression-Out and five item of anger Expression- In eliminated due to poor psychometrics characteristics and loading on the irrelevant factor. Relatively stable factor structure were obtained for men and women with the exception of differences on the Anger Expression- In scale.