With the establishment of the Safavid government as the most important Iranian Shiite government, the intellectual and cultural atmosphere of Iran was completely transformed. The Safavid kings, who mainly considered themselves to be religious leaders along with their political status, tried hard to spread Shi'ism and sometimes took it to extremes. The manifestation of this effort can be found everywhere in the scientific works of this period; Examining the Persian works of Allama Majlisi as the main religious figure of this period from the stylistic lens clearly shows this. The authors have reached some results in the stylistic approach to Persian works of Majlisi. Intellectual level: Many concepts raised among Islamic sects, such as goodness and ugliness of actions, seeing God, predestination and free will, etc., can also be seen from a Shiite perspective in Majlisi's works. Language level: according to the needs of the general audience, Majlesi often uses simple and sometimes vernacular language. The abundant use of Arabic grammar and syntax indicates the influence of the Arabic language in Persian. Literary level: contrary to the common verbal complexities of the Safavid era, Majlisi consciously chooses a language devoid of literary arrays, paying attention to the subject of his works; The low frequency of use of verbal and spiritual arrays is a proof of this claim.