For a goal from studying the book "Supporting the Revolutionary on the Speech of the Perfume" by Salahuddin Khalil bin Aybak Al -Safadi, is to reveal criticism in the eighth century AH, which was known as the era of degradation, by extracting monetary issues from the book, and dividing them into two aspects: a linguistic aspect, a literary aspect, and consideration In the way Al -Safadi adopted in his treatment of these issues, as well as to reach the tradition and renewal of Safadi, the study also aims to highlight the importance of the book in critical practice in the old critical lesson.