The floating population in Shanghai, Anhui Province accounted for 29%, with a total of 2.874 million people, and the floating population in Shandong Province reached 403,200, accounting for 4.2%.

Shanghai is an important center of economy, transportation, science and technology, industry, finance, exhibition and shipping in China, and it is also one of the largest metropolitan areas in the world. Shanghai Port ranks first in the world in terms of cargo throughput and container throughput, and it is a good international port along the river and coast. Shanghai is also the location of Chinese mainland's first free trade zone "China (Shanghai) Pilot Free Trade Zone". Shanghai, Jiangsu, Zhejiang and Anhui constitute the Yangtze River Delta urban agglomeration and become one of the six world-class urban agglomerations in the world. Located at the mouth of the Yangtze River, Shanghai is the leading city in the Yangtze River Economic Belt, facing Kyushu Island across the sea, Hangzhou Bay in the south and Jiangsu and Zhejiang provinces in the northwest.