Korean nationality is one of the main nationalities in Northeast Asia. After the Japanese occupied the Korean peninsula, they moved to the northeast of China in order to escape the war, or lived together or scattered. 1677, the Qing dynasty banned northeast China, including Changbai Mountain. However, after 1700 AD, some Koreans who could not bear the cruel exploitation and natural disasters of the feudal ruling class in Korea still lived in the northeast of China with their families and horses. Especially in 1869, the north of Korea suffered a catastrophe, and some suffering Korean farmers crossed the Yalu River and Tumen River and came to China to reclaim land along the two rivers. But at this time, the number of people moving in is not very large, most of them come in spring and go in autumn, and their residence is still unstable. 65438+policy of recruiting people for reclamation after 50' s and 60' s in 2009. 188 1 year, set up famine relief bureau in Jilin and reclamation bureau in Nangang (Hunchun), Yanji and Donggou to recruit immigrants. Those who should be recruited are all subjects of China. 1885, the Qing government designated the northern bank of Tumen River, which is about 700 miles long and 50 miles wide, as a special reclamation area for Korean farmers, so that more Koreans entered the Northeast. According to statistics, from 65438 to 0870, there were 28 Korean-inhabited towns on the north bank of Yalu River. In the seventh year of Guangxu in Qing Dynasty (188 1), there were more than 10000 Koreans in Yanbian area. From 65438 to 0883, there were more than 37000 Korean residents in Ji 'an, Linjiang and Xinbin counties. During the same period, a large number of Korean farmers moved into the areas along the Wusuli River.

19 10, the Korean people and some anti-Japanese patriots who could not bear the cruel oppression and exploitation of Japanese imperialism moved to the northeast of China in large numbers, reaching more than 360,000 by 19 18. To 1945, reaching 2150,000.