In order to identify and describe the central core of fashion desire, the concept of“anti-aesthetics”and“open fashion”were analyzed based on the discourses of postmodernism dis-cussed in the field of sociology, culture, art and philosophy. In this paper, first, the new perspectives of fashion related to modernism and postmodernism were proposed, open concept, anti-aesthet-ics which is ephemerality but eternal ideology. Key principles of postmodernism as anti-aess-thetics mean the philosophy of nihilism proposed by Nietzsche indeterminency, the endd of original art(the death of art), the sublimity provided by Lyotard, and the pluralism to release human from the closed way of thinking, value, ideology. Second, the old and classical definition of fashion,“the differentiation of class”proposed by Veblen and Simmel has been changed into the“differentiation of taste”in postmodern condition. Third, the dichotomous system, that is, ration vs emotion, soul vs body, male vs female, culture vs nature, and so on has been deconstructed and disolved in the postmodern fashion phenomenon using the technique of anti-formalism, such as pastich, parody, bricolage an kitsch for the expression of sublimity and freedom of human.