Pegasus is one of the hybrid creatures whose motif has been seen on Sassanid seals, But its history in Iran is much older than the Sassanid period and goes back to the 10th or 9th century. Apparently, in the beginning, the ancients considered the image of a winged horse to be a symbol for carrying the souls of the deceased, whose meaning changed over time and acquired a mythological aspect. Although the legends of the origin of the pegasus are different in each civilization, there are many similarities in the branch of art. On the back of Greek, Roman and some Parthian coins, the winged horse is mostly seen at a gallop and on Sassanid seals is generally seen with one raised leg. In Iran, the winged horse has been one of the manifestations of the gods Tishtar and Bahram and as a bearer of the Mehr wheel in the Zoroastrian religion. This research aims to answer these questions:

What has been Iran's impact on the transfer of pegasus horses? And what is the relationship between the motif of the winged horse and the religious and mythological beliefs? According to the hypothesis of this research, the pegasus horse was introduced from Iran to neighboring civilizations such as India, China and Greece, and in the Sassanid period, which is the peak of Zoroastrian religion in Iran, its role was mostly used on seals and sometimes on textiles and dishes, which show the influence of religious beliefs on art. Studies on inscription seals that contain the motif of the winged horse show that the motif of this horse was more used on Mobadan (priest) seals. This research was done in a historical-descriptive way and library materials collection.