The Tang Dynasty was a famous period in the history of China, and the poetic criticism of the Tang Dynasty had a great influence on Tang poetry. The aesthetic concept of Tang poetry was formed: the poetic criticism of Tang dynasty had a far-reaching influence on the aesthetic concept of Tang poetry. For example, critics in the Tang Dynasty believe that Tang poetry should have four elements: instrument, melody, ci and color, which has become the basic aesthetic criterion of Tang poetry.
Enriched the content and form of Tang poetry: Poetic criticism in the Tang Dynasty also had an important influence on the content and form of Tang poetry. For example, critics in the Tang Dynasty advocated "Ci Fu", that is, the combination of prose and Fu style enriched the content and expression of Tang poetry.