Symbolic figures, in addition to decorative aspects, are indicator of culture, religion, art and political and social structures of a government and country in ancient times. During the Sassanid era, symbolic figures flourished further with the mixture of religion and polity and their examples can be seen in most of the remaining artworks from the same era that could found during archaeological excavations. Investigation of symbolic figures in the Sassanian rock reliefs and stucco is a necessity but unfortunately, has not been independently and elaborately addressed to this date. It is necessary to investigate this significant aspect using archaeological and historical evidence. This study, which is considered as a kind of fundamental research based on its objective and a historical one with respect to its nature and methodology, obviously indicate that the dominant symbolic figures in Sassanian rock reliefs and stucco have had religious origins.