In 960, the Song Dynasty (960-1279) (宋朝) gained power over most of China and established its capital in Kaifeng (開封, later known as 汴京), starting a period of economic prosperity, while the Khitan Liao Dynasty (遼朝/遼国) ruled over Manchuria, present-day Mongolia, and parts of Northern China. In 1115 the Jurchen Jin Dynasty (1115-1234) (金朝/金國) emerged to prominence, annihilating the Liao Dynasty in 10 years. Meanwhile, in what are now the northwestern Chinese provinces of Gansu, Shaanxi, and Ningxia, there emerged a Western Xia Dynasty (西夏) from 1032 up to 1227, established by Tangut tribes.

The Jin Dynasty also took power over northern China and Kaifeng from the Song Dynasty, which moved its capital to Hangzhou (杭州). The Southern Song Dynasty also suffered the humiliation of having to acknowledge the Jin Dynasty as formal overlords. In the ensuing years China was divided between the Song Dynasty, the Jin Dynasty and the Tangut Western Xia (西夏). Southern Song experienced a period of great technological development which can be explained in part by the military pressure that it felt from the north. This included the use of gunpowder weapons, which played a large role in the Song Dynasty naval victories against the Jin in the Battle of Tangdao and Battle of Caishi on the Yangtze River in 1161. Furthermore, China's first permanent standing navy was assembled and provided an admiral's office at Dinghai in 1132, under the reign of Emperor Renzong of Song.

The Song Dynasty is considered by many to be classical China's high point in science and technology, with innovative scholar-officials such as Su Song (1020–1101) and Shen Kuo (1031–1095). There was court intrigue with the political rivals of the Reformers and Conservatives, led by the chancellors Wang Anshi and Sima Guang, respectively. By the mid to late 13th century the Chinese had adopted the dogma of Neo-Confucian philosophy formulated by Zhu Xi. There were enormous literary works compiled during the Song Dynas

Jurchen tribes' Jin Dynasty, whose names are also rendered "Jin" in pinyin, was defeated by the Mongols, who then proceeded to defeat the Southern Song in a long and bloody war, the first war where firearms played an important role. During the era after the war, later called the Pax Mongolica, adventurous Westerners such as Marco Polo travelled all the way to China and brought the first reports of its wonders to Europe. In the Yuan Dynasty, the Mongols were divided between those who wanted to remain based in the steppes and those who wished to adopt the customs of the Chinese.

Kublai Khan (忽必烈/元世祖), grandson of Genghis Khan (成吉思汗), wanting to adopt the customs of China, established the Yuan Dynasty (元朝). This was the first dynasty to rule the whole of China from Beijing (北京) as the capital. Beijing had been ceded to Liao in CE 938 with the Sixteen Prefectures of Yan Yun (燕雲十六州，燕云十六州). Before that, it had been the capital of the Jin, who did not rule all of China.

Before the Mongol invasion, Chinese dynasties reportedly had approximately 120 million inhabitants; after the conquest was completed in 1279, the 1300 census reported roughly 60 million people.[20] The 14th century epidemics of plague (Black Death) is estimated to have killed 30% of the population of China.[21][22]

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