This study examines the techniques of self in the late Stoa thought, and analyzes the techniques of self as an ethical problematic in the Hellenistic period, both in the context of thinkers of the time and with the approach of Michel Foucault. The idea of the Stoa, which existed in the late Hellenistic and early Roman times and placed itself on the question of “what is good life", emerged with the motive that bowed to itself and made sense of its existential goal and gained an important place in the history of Ancient philosophy. Stoa's philosophy, which considers the connection of the subject with itself, truth and freedom as a whole, was embraced by Michel Foucault who analyzed the historical change of subjectivity as a project of subjectivity against modern power analysis. For Foucault, the modern subject is completely surrounded by modern techniques of power, and the subject's connection with both himself and the truth has been removed by the pressure of the structures of power. In this respect, it is necessary for Foucault to look at the practices of subjectivity in Ancient Greece, and the processes of subjectivation of this period can be considered as a new way out of the subject to oppression in the contemporary world. Therefore, in Ancient Greece, especially in the doctrine of Stoa, the techniques of self have been studied and analyzed by Foucault as a feasible resource against the siege of the modern subject. In this respect, the study proceeds around this problematic, focusing not only on the pioneering thinkers of the teachings of the Late Stoa period, but also on the practices of subjectivity around Foucault's analyzes.