China has a vast territory, diverse landforms and different causes. There are external forces such as weathering, erosion, transportation and deposition, as well as internal forces such as crustal movement. For example, "the green mountains on both sides of the strait are opposite, and the lonely sails are drying themselves" (Li Bai in Tang Dynasty) can be understood as a description of the landform eroded by flowing water, that is, the crust rises and the flowing water goes deep into the valley, making the green mountains opposite. In the description of karst landforms, Lu Lun, a famous poet in the Tang Dynasty, wrote "Balu Lv Yun goes out, and the countryside enters the cave", a masterpiece of Guizhou Plateau landforms in the middle stage of karst landforms development. Its description is clear, appropriate and natural, showing the geomorphological characteristics of Guizhou Plateau. "It's difficult to get through the Shu Road, and it's difficult to get to the sky" and "48,000 years have passed without meeting the Qin fortress" (Li Bai in Tang Dynasty) illustrate the landform of Sichuan Basin, and the Shu Road has been rugged and blocked since ancient times. "Looking at the mountain side into a peak, the distance is different." This poem by Su Dongpo (Song Dynasty) is a typical description of mountainous terrain and embodies the majestic beauty of Lushan Mountain. "Three mountains and a half fall into the sky, and two will be divided into Bailuzhou" (Li Bai) "The fine grass on the beach meets the sparse forest, and the waves are evil and the ship is half heavy. The common heron sleeping gull is not an old pond, and last year, the sand mouth was the center of the river "(Tang Huangfusong) can explain the sedimentary landform of the center of the river formed by river alluvial. "The sky is grey, the fields are boundless, the wind blows, and there are no cattle and sheep" (Hulujin in the Northern Dynasties) shows the vast and magnificent grassland landform of Inner Mongolia Plateau in China, vividly depicting fertile grasslands, flocks of cattle and sheep, and peaceful and quiet pastoral areas. "How the water of the Yellow River flows into the sea from the sky to the east without returning" (Li Bai) not only shows that the terrain of China is high in the west and low in the east, but also reveals the law of water circulation between land and sea. Land runoff flows into the sea, and seawater can only be transported from the air to the land through the atmosphere. Implicit water cycle can regenerate and supplement water resources on land.