Much of the existential style indicators of "death, suffering, fear and sin" exist in the works of Sadegh Chubak. The author tries to portray the ugliness and inequality of society in the eyes of the readers, in addition to depicting the consequences of this injustice. The main research question here is how did the most important indicators of existential style emerge in the stories of "The Stone of Patience, the Entry of the Dead and the ATMA of My Dog? " Existentialist philosophy based its analysis of Raber's fate on three fundamental inferences and considered three signs of existence for it. The purpose of this article is to elucidate three existential principles (sensory, moral and faith) in Sadegh Chubak's works. The results show that Chubak's worldview is influenced by philosophers' analysis. As a social writer, Sadegh Chubak has a good understanding of society, its pains and problems. The author's stories are full of themes such as "death, suffering, fear and sin", which is one of the most important concerns of existences. In character analysis of the stories of "The Stone of Patience and My Dog ATMA" we conclude that most of these characters do not rise above the solitude of moral and existential existence, and do not reach the stage of faith existence. Experiences faith.