The main object of this paper is to discuss the psychological impact in Arabic Literature. Arab critics took Ibn-al-Rummi (283H) as specimen of this study. This Abasin poet is a specimen of this study. This approach is used to study his literary work and link it to the writer's autobiography. The foundation of this approach in the Arab poetry is coincide with Froidian school of psychological study in the west. The most prominent Arab critics who belonged to this school are (i) Al-Aqaad, (ii) Al-Mazini, (iii) Mohammad Al-Nuwaihi, (iv) Ilia Hawi, (v) Ali Shallaq. As an example of this group, Al-Aqaad, used the psychological approach to study the poet's artistic work as a part of the poet's life. The above critics studied Ibin Al-Ruumi's, geniousness, psychological compensation, the process of psychological climitization, psychological and misbehaviors (mental disturbances, the psychological self struggle and introvercy of his poetry. In fact, Ibin Al-Ruumi was a psychiatric case of study, in whose literature; they figured out the documents that dicover his autobiography and his profound psychological struggles. Thus, his character was wobbling and weakly built up to that the extent the documentary view was prominent in his work. Therefore the literary aesthetic features were rare. Due to such defecieneis in his literary work, Arab critics were inclined to follow the psychological approach to analyze this humanistic experience in Ibn Al-Ruumi's poetry. Among the critics Al-Aqaad, who was in just in evaluating this poet and said the phrase "Ibn Al-Ruumi was excellent poet of his era and always alive in his poetry".