The Phoneticization Movement and speech culture were launched during the Late Qing period. Voices repressed by Hanzi and Hanwen gradually came to the surface of history. This research explores why people paid attention to the voice in the late Qing Dynasty, including what kind of social metaphors were hidden behind the prosperity of speech culture, and how phonocentrism became involved in the process of building the "nation-state." This research reveals that during the transition from the "world" to the "nation-state," communication changed in three dimensions and voice participated in the reconstruction of the information boundary. The rise of speech culture was, to some extent, an imitation of the Japanese experience. More importantly, it conformed to the "kuai" consciousness. Phonocentrism led to the cleavage between the modern written language and the classical language; therefore, the construction of the "nation-state" was lacking in reliable contact with the tradition, and the construction of "Xinmin" served the interests of different political groups.