Why Tang poetry is excellent is the peak of poetry. Why is it difficult for future generations to surpass? Answer the second question first. Philosophically, everything has its ups and downs. When a new thing, including the cultural field, reaches a certain peak, it will form a formula, which will easily solidify people's thoughts, melt people's free thinking space, blindly worship and imitate, and try to find out some golden rules of poetry from it. In this way, people's thinking space and imagination are bound, and the classics are hard to be surpassed, but the times and social reality are constantly changing! Answer the first question again. We should understand the historical background, material environment, political environment and cultural environment of the formation of Tang poetry. Due to the lack of time and space, we can only find the root of the problem by seriously thinking and reading the ancient history of China. First, the fragmented history of the country in Wei, Jin, Southern and Northern Dynasties was unified in Sui and Tang Dynasties; Second, the cultural and artistic history of the Northern and Southern Dynasties and the widespread spread of Buddhism after the Eastern Han Dynasty; Third, the political enlightenment and the rule of chastity in the Tang Dynasty, the emergence of the prosperous era of Kaiyuan, and the freedom and openness of thought.