By composing “Ghoghnoos” in 1316, Nima Yooshij began using symbols in contemporary poetry. After him, strong and serious followers were found. By contemplating and meditating on Nima’s poem, especially the poems composed after the mentioned year, we can find the origin of his poetic symbols. The main origin of his symbols is, first, nature and its various manifestations like time, place, some of Four Elements, birds, animals, jungles, trees, etc and then humane symbols which are often related to native characters and people of Nima’s living area. In his poem there is no trace of legendary and epical characters such as Rostam, Esfandiyar, Afrasiyab, and the Islamic characters such as the Prophet of Islam, Imam Ali and other leaders as symbol. Some of his other symbols are rooted in our past mythology, tradition and culture.In this article, by examining symbols in Nima’s poem, it is clarified that most of his symbols are innovative and personal. Of course, even his most subjective and personal symbols originate from the observable and objective world and the environment of the poet.