The book "Siboyeh" (T: 180 AH) is almost considered to be the oldest book in the field of grammar and study of Quranic evidences and is considered by many greats after him as a reliable reference in this field. . Sibouyeh has paid special attention to the Qur'anic evidences in formulating syntactic rules and in order to establish his syntactic opinions, and has made the Qur'an the center of attention in his analyzes. The necessity of this research is to show the relationship between syntax and interpretation. This study first examines the analysis of Quranic evidence in the book "Siboyeh", in which the explanations of other syntactic scholars have been used to clarify the content and analysis of Siboyeh. Then, a comparative study of the extent and effect of Sibouyeh's analysis on Tabarsi, who is considered one of the great Shiite commentators, is mentioned. The results of this study show that "Tabarsi" in some Qur'anic evidences accepts the analysis of "Siboyeh" and quotes him directly in his analysis or indirectly from him without mentioning his name. Has been affected. Here we can say that most of the reflections of Sibouyeh's analyzes are seen indirectly in the interpretation of Majma 'al-Bayan. Another is that in some cases we see that "Tabarsi" has not accepted some of the analyzes of "Siboyeh" and has a view contrary to the syntactic view of "Siboyeh" and in some Qur'anic examples a mild critique of the analysis of "Siboyeh" Enters.