The Tang dynasty witnessed the prosperity of poetry. It is the collective writing of poetry in the court with the emperor in the center and the imperial examination to select high officials that led to the full blooming of poetry. What they shared in common is that poetic writing was a competition. Conventionally there arranged a competition of poetic writing in the court after the banquet hosted by the emperor. The poets, mostly high officials, were concerned with the poetic language whenever they wrote a poem in the court, the language which became a criteria for poetic mastery. Since the Tang government enforced a national policy to include poetic writing in the imperial examination, Tang literati devoted themselves to learning poetics and developing poetic skills. In order to become a winner, they focused on the de-familarization of daily language especially in composing Modern-style poems by disrupting the linguistic grammar. The inversion of word order, the list fragment of nounal images, and the abbreviation of sentence as the mode of de-familarization of language are frequently found in the Tang poetry. It is obvious that de-familarized language in the poetry “makes strange the world of every perception and renew the reader’s lost capacity for the freshness of sensation”, as V. Shklovsky says. The de-familiarization of language reflects an aspect of the great literariness of the Tang poetry which is hardly found in Song poetry oriented towards the philosophical trend.