Xining is the capital and most populous city of Qinghai province in western China and the largest city on the Tibetan Plateau. As of the 2020 census, it had 2,467,965 inhabitants (2,208,708 as of 2010), of whom 1,954,795 lived in the built-up (or metro) area made of 5 urban districts. The city lies in the Huangshui River Valley, also known as Tsongkha (Tibetan: ཙོང་ཁ་), and owing to its high altitude, has a cool climate on the borderline between cool semi-arid and dry winter humid continental.
Xining was a commercial hub along the Northern Silk Road's Hexi Corridor for over 2000 years, and was a stronghold of the Han, Sui, Tang, and Song dynasties' resistance against nomadic attacks from the west. Although long a part of Gansu province, Xining was added to Qinghai in 1928. Xining holds sites of religious significance to Muslims and Buddhists, including the Dongguan Mosque and Kumbum Monastery. It is connected by the Qinghai–Tibet railway to Lhasa, Tibet and connected by a high-speed railway to Lanzhou, Gansu and Ürümqi, Xinjiang.
The city is home to Qinghai University, a comprehensive university and the only Double First-Class University in Xining.
Xining has a history of over 2,100 years and was a chief commercial hub on the Hexi Corridor caravan route to Tibet, handling especially timber, wool and salt in ancient times. The trade along the Hexi Corridor was part of a larger trade corridor along the Northern Silk Road, whose use was intensified in the 1st century BC after efforts by the Han dynasty to control this route.
Under the Han dynasty (206 BC – 220 AD), a county called Linqiang was established to control the local Qiang tribesmen. It was again a frontier county under the Sui (581–618) and Tang (618–907) dynasties; during the 7th and early 8th centuries it was a center of constant warfare with Tuyuhun and Tibet. In 763, it was overrun by the Tibetans and while under Tibetan control was known to the Chinese as Qingtang cheng (青唐城). Recovered by the Song dynasty in 1104, it received the name Xining (meaning "peace in the west") and has been the seat of a prefecture or superior prefecture under that name since that time. The founder of Gelug Tsongkhapa (Tibetan: ཙོང་ཁ་པ་, meaning: "the man from Tsongkha". c. 1357–1419) was born in the 14th century, and on the site of his birthplace the Kumbum Monastery was founded in the late 16th century, establishing Xining as an important religious center for the Gelug School of Buddhists.
A major earthquake occurred May 22, 1927, measuring at a magnitude of 7.6. It was one of the deadliest earthquakes in China with a total count of over 40,000 deaths. It also caused large land fractures.
Xining was the extraterritorial capital of the Koko Nor territory and remained in Gansu until 1928, when it became the provincial capital of the newly established independent province of Qinghai.
Xining was subjected to aerial bombardment by Japanese warplanes in 1941 during the Second Sino-Japanese War. The bombing spurred all ethnicities in Qinghai, including the local Qinghai Mongols and Qinghai Tibetans, against the Japanese. The Salar Muslim General Han Youwen directed the defense of the city of Xining during air raids by Japanese planes.
Xining was given municipal status in 1945.
Under the rule of Governor Ma Bufang, Xining, like the rest of Qinghai, underwent industrialization and modernization. In 1947 the USA sold Ma Bufang a piped water (sewage) system which was installed in Xining. Ma Bufang also promoted education. He made businessmen methodically clean up Xining by serving as insect exterminators.
Since the late 1950s, when the Liujiaxia Dam and hydroelectric project came into operation in neighboring Gansu province, Xining has been linked by a high-tension electrical grid to both Liujia and Lanzhou. It also uses local coal from mines at Datong County to the north, but however, a modern woollen mill was installed at Xining before 1957. The city also has a leather industry and is a market for salt from the Qaidam region. During the late 1950s medium-sized iron and steelworks were built there, supplying metal to Lanzhou.
Construction of a highway to the mineral-rich Qaidam basin, and completion in 1959 a link to the Chinese rail network via Lanzhou in Gansu province, has spurred industrial development. This effort was part of a plan of the central government to rapidly exploit oil and pasturage in the Xining area beginning in the 1950s.
Xining is located in the eastern part of Qinghai Province and lies on the Huangshui River. The four urban districts have a total area of 343 km2 (132 sq mi).
Xining is located on the eastern edge of the Qinghai–Tibet Plateau and the upper reaches of the Huangshui River. It is the political, economic, and cultural center of Qinghai Province with an average altitude of about 2,200 metres (7,200 ft). Human activity in the region can be traced to 2,100 years ago. During the Western and Eastern Han dynasties, owing to its developing agriculture, Xining was paid notice due to its economic and military significance. As well as being an important hinge between the Central Plains and the western part of China in ancient times, Xining was an important link in the Silk Road. It continues to be an important rail and road link to the hinterlands of the Qinghai–Tibet Plateau.
Xining has also been dubbed the Summer Resort Capital of China owing to its cool summer, with a borderline cold semi-arid climate (Köppen BSk)/dry winter humid continental climate (Dwb). Conditions are influenced by the aridity and high altitude. Nights are cold or cool throughout the year, and the diurnal temperature variation often reaches or exceeds 15 °C (27 °F). The monthly 24-hour average temperatures ranges from −7.9 °C (17.8 °F) in January to 17.5 °C (63.5 °F) in July; the annual mean is 6.0 °C (42.8 °F), still making it one of the warmest locations in Qinghai due to the low elevation by provincial standards. Rainfall falls mainly from May to September, and the area is often dry and sunny: with monthly percent possible sunshine ranging from 49 percent in September to 67 percent in November, the city receives 2,540 hours of bright sunshine per year. Extreme temperatures have ranged from −26.6 °C (−16 °F) to 36.5 °C (98 °F). Snow cover is very low due to the dry winters.
In 2007, the World Bank lent US$1 billion to aid river treatment in Xining, including Sanxian County's anti-flooding project, with an added US$1 billion to support infrastructure. Qinghai has invested large amounts in the treatment of Huangshui Main River and Nanchuan River, totalling 24.5 km (15.2 mi). However, a treatment on a 40 km (25 mi) river course and 10 flash flood relief channels remain pending due to lack of equipment. In Sanxian County, a 108.4 m (356 ft) long river course and 80 flash flood relief channels need treatment.
According to a 2011 World Health Organization (based on Chinese statistics), Xining has the second worst air quality (annual mean PM10 ug/m3 of 141) among eleven western China cities, and is worse than Beijing (121).
The GDP per capita was 49,200 RMB (US$7,897) in 2015. Its main industries are wool spinning and textiles, fur, meat, milk, salt, and light processing industries.