Foucault has long been blamed as an anti-humanist and his “rejection” of subject also taken responsible for losing an agent to resist social injustice. This essay, however, deals with Foucault’s more sophisticated concept of subject, turned out to be prevalent and functional almost through out all his works, especially in his three-volume “History of Sexuality”. This subject (or subjectivation) is a subject-in-process or a subject-in-crisis, which by no means passive under the disciplinary power to become a subjected subject, but like a subject holding an existential gesture beside an abyss to reflect all its paradoxical tension. And such modern subject would evoke a transgressive desire to jump and meet with its impossible double under the ruptured ground.