From the perspective of poetry themes, Tang poetry has penetrated into almost every area of ??Tang people's life, including political gains and losses, the rise and fall of the country, loyal and traitorous generals, victory and defeat in wars, court singing, dancing and feasting, folk fishing, woodworking, farming and weaving, etc. The officials' pursuit of greed, the people's sorrow and suffering, domestic and foreign trade recruitment, frontier fortress worship of gods, animal husbandry and hunting, mountain and river landscapes, pastoral scenery, piano and chess skills, calligraphy and painting scenes, all kinds of materials are included in the theme. From the ambition to help the people and stabilize the country, to the ambition to serve the kings, Yao and Shun, and to contribute to the frontiers, to the leisurely fun of living in seclusion in the mountains and forests, and the sorrow of missing lovers; from the farewell and farewell, the separation and sorrow of missing relatives, to the exhaustion of work, failure, and desolation. Jian's complaints and resentments, and all kinds of feelings can be expressed. Poetry has almost become an inseparable part of the life of the Tang people, and the Tang people fully utilized the various functions of poetry.