The research aims at analyzing the style of Imam Ali in the “Hysteron Proteron”, and the style was dealt in three ways as follows: - 1) Idiomatic hysteron proteron. 2) Grammatical hysteron proteron 3) Non-idiomatic hysteron. And the finally a summary of the research, and also the results with reference to comments were mentioned in the conclusion. Most of critics are on the view that, the Arabic language is characterized by other languages by features that are not found in other languages, such as flexibility in leaving freedom to the speaker to speak what he wants in his speech. But this is only done through clear and well-known rules, and in spite that, there are cases in which Hysteron is bidden, and for that reason the scholars of grammar and rhetoric began to talk about the term “Hysteron”. When stylistics appeared at the beginning of twentieth century, stylist prepared themselves to search for Hysteron proteron in the studies of deviational manner. The method used is descriptive analytical approach that seeks to describe, analyze and reveal the places of Hysteron Proteron and select them in term of analysis, and it is concluded during the study that, Imam Ali has reached the climax of skill in the Hysteron proteron.