Luoyang, also known as Luoyang and Luojing, is a prefecture level city in Henan Province and a sub central city of the Central Plains Urban Agglomeration. Luoyang has a total area of 15230 square kilometers, including 2274 square kilometers of urban area. In the west of Henan Province, it is about 179 kilometers long from east to west and 168 kilometers wide from south to north. It crosses the middle and lower reaches of the Yellow River on both sides of the north and south, borders Zhengzhou in the east, Sanmenxia in the west, Jiaozuo in the north across the Yellow River, and Pingdingshan and Nanyang in the south.

Luoyang has a civilization history of more than 5000 years, a city history of more than 4000 years, and a capital history of more than 1500 years. Luoyang is one of the birthplaces of Chinese civilization, the eastern starting point of the Silk Road, and the center of the Grand Canal of the Sui and Tang Dynasties. In history, thirteen dynasties successively established their capitals in Luoyang. Luoyang has five major city sites, including Erlitou Site, Yanshi Shang City Site, Eastern Zhou Dynasty King City Site, Han Wei Luoyang City Site, Sui Tang Luoyang City Site. As of March 2019, Luoyang has 6 world cultural heritages, including Longmen Grottoes, Hanguguan Pass and Hanjiacang; By the end of 2019, there were 82 Grade A tourist attractions in Luoyang, of which 30 were above Grade 4A. Luoyang has festivals such as China Luoyang Peony Culture Festival and Heluo Cultural Tourism Festival. Luoyang has won the honors of China's Excellent Tourist City, National Garden City, National Health City, National Civilized City, etc.

By the end of 2019, Luoyang had a total population of 7.1702 million, a permanent population of 6.922 million, and a permanent urban population of 4.091 million; As of March 2021, Luoyang has 7 counties and 7 districts under its jurisdiction; By the end of 2020, Luoyang's GDP had reached 512.84 billion yuan, an increase of 3.0% over the previous year at comparable prices. Among them, the added value of the primary industry was 25.41 billion yuan, up 2.7%; The added value of the secondary industry was 23.122 billion yuan, up 3.6%; The added value of the tertiary industry was 25.621 billion yuan, up 2.3%.