Abstract: In order to rebel against traditional metaphysics, Nietzsche, as a rhetorician, criticized Plato's dialectic by rhetoric idea, while he substituted rhetorical form for strict logical demonstration in his language. Nietzsche used double rhetoric: On one hand he must destruct unceasingly; on the other he disguised himself by the rhetoric of creation and reappraisal-thus he wore a mask. The mask itself was a kind of nihility, which was Nietzsche's discourse strategy whereby he deconstructed the rhetoric trick in ideology with rhetoric play of generation.