Mythology allocated a large part, fundamental and effectively to the human mind. The knowledge of mythology in fact recognizes the important infrastructure of ideas, culture and civilization. One of the most common ways to study mythology is to implement psychological ideas in mythology. The result is not only a better understanding of mythology, but also a better understanding of human psyche and man’s individual and collective life. In this study, we want to take advantage of Jung's theory of personality psychology to explore the myth of the creation of man in ancient Persian mythology. In this paper we refer to Jung's theory of personality psychology to explore human creation in ancient Persian myth. Carl Jung believed that in human there are two sexes together. Kiumarth, the first human in Persian mythology is a creature who denotes both a man and a woman: Mashya and Mashyana. The evolution of the first giant into the king-priest, the expansion of his character and finally his martyrdom are, according to Jung's theory, the steps that existed in the Persian myth of human creation. This article studies the human creation on the basis  of ancient Persian and the Middle Persian sources in the light of Jung's personality theory.