The history of the Sassanid era is one of the most important historical-social and political-religious periods of Iran. The study of the doctrinal and ideological aspects of the Iranian people in this historical period, in the context of literary and folk texts, is a remarkable research. Zarwanism is one of the most important and philosophical schools of thought and belief in Iran during the Sassanid historical period that had a direct impact on folklore and folk tales. This research is in the form of interdisciplinary research and descriptive-analytical method following a historical-doctrinal reading of the Sassanid period based on folk texts. Among the most important texts of Iranian written folk tales, two stories of Darabnameh Tarsousi and the story of Hamzeh have been selected. The reason for choosing these two stories is their similarity or approximation, their language and time, as well as the degree of reflection of Zarwani components in them. The issue of this research is what effect has Zarwanism had on folk texts, what are the components of the beliefs of this religion in these texts, and which belief is more frequent than other beliefs? It seems that popular texts that have epic-mythological themes and belong to the Sassanid historical period, more than other texts are associated with these beliefs. The most important Zarwani beliefs reflected in these two stories include, namely, divination and astrology, negative view of women, inevitable destiny, belief in the punishment and reward of this world, condemnation, meaningful reflection of the symbolic numbers seven and twelve, luck, the frequent presence of sages and various and surreal creations. The article concludes that astrology with 48 cases, code number seven with 36 cases, inevitability of fate with 30 cases, presence of sages with 29 cases, various and surreal creations with 29 cases, code number twelve with 26 cases, negative view of women with 25 cases, punishment and the reward of this world with 12 cases, luck with 8 cases and condemnation with 7 cases have the highest frequency, respectively.