Jiangnan, literally meaning Jiangnan, refers to the area south of the middle and lower reaches of the Yangtze River in the concept of human geography. Jiangnan in a narrow sense refers to the south bank of the middle and lower reaches of the Yangtze River. Jiangnan in a broad sense includes the south of the middle and lower reaches of the Yangtze River, Nanling and Wuyishan, that is, the whole territory of Hunan, Jiangxi, Zhejiang and Shanghai and the area south of the Yangtze River in Hubei, Anhui and Jiangsu. In different historical periods, the literary image of Jiangnan is different. Jiangnan first appeared in the pre-Qin and Han dynasties, referring to the middle reaches of the Yangtze River in Hunan and Hubei and the Jiangnan part of Jiangxi. Now it refers to Suzhou and Hangzhou areas and Taihu Lake and Qiantang River basin areas. In ancient times, Jiangnan was once called Wu Chu by the Central Plains. Later, with the southward migration of the Han nationality in the Central Plains, Jiangnan became a beautiful and rich area with developed culture and education, which reflected the ancient people's yearning for a better life and was a paradise in people's minds. Since ancient times, "Jiangnan" has always been a constantly changing and flexible regional concept. Jiangnan means south of the Yangtze River. In ancient times, Jiangnan often represented a prosperous and developed culture and education and a beautiful and rich water town scene, and the region was roughly the south bank of the middle and lower reaches of the Yangtze River.