Stylistics is one of the subjects that has a Close relationship with Linguistics and the critics paid attention to it in investigation and analysis of texts. It has created the balance between scientific method in language studies and critical method in Study of literary texts. But there are few works focused on this topic and the book (Ali Ibn –e- Abi taleb (peace be upon him) style in his Military Speeches) is important for compensate for this shortage. Also fore sure Every book has Values shortcomings critical study of the book can help the Writer to Correct his book and write Better book. To Achieve this goal in the present study, it is intended to study the book (Ali Ibn –e- Abi taleb (peace be upon him) style in his Military Speeches) by Ali Ahmad Omran. The paper Explains the Book defects in A few main categories after Introduction about the book. The results of the study have been mentioned in the Article and they show that this book can be a Supplementary book Because it applied A New theory TO A Valuable old text AS Nahjul Balagha, However, this book isnt Proportional to Rubric of Ministry of Science for this Lesson.