Judging from the subject matter and content, Tang poetry has penetrated into almost every field of Tang people's life, ranging from the rise and fall of the country, political gains and losses, social unrest, war victory and defeat, and people's livelihood suffering, such as the use of foreign troops in the prosperous Tang Dynasty, The Anshi Rebellion at the turning point from the Tang Dynasty to the Mid-Tang Dynasty, as well as the sufferings suffered by the people during the period of conquest and execution, and the three major chronic diseases of the Mid- to Late Tang Dynasty - eunuch power, separatist vassal towns, and party strife, were all written into the poem, which is known as the "epic" There are countless works. As small as the piano skills, chess skills, calligraphy, painting, insects, fish, birds and beasts, all are included in poetry. As for those traditional themes that describe nature and countryside, sing about daily life, express feelings of separation, praise achievements, and yearn for fishing and woodworking in the mountains and forests, more and more of them are springing up like bamboo shoots after the rain. And there are different forms, including travel narrative, allegory, poetry, biography, legend and so on.