First, the military immigrants in the border areas. Zhu Yuanzhang relocated the population of the northern foot of Yanshan Mountain to the north and central part of Hebei Province. A large number of guard posts were set up along the border line, with 1120 soldiers in one place and 5 troops in total of 5600 in one. Guard officers and men must take their families to guard. Soldiers and their families constitute the main body of military immigrants. Regionally speaking, there are Liaodong Capital Division in eastern Liaoning, parallel Capital Division in North Yanshan, Shanxi Capital Division in North Shanxi, and Shaanxi Capital Division in present-day Ningxia and Gansu in Western Shaanxi. The total number of military personnel in the north is as high as 1.1 million. Their enemy is only one Mongolian, who is unwilling to fail. In addition, more than 700,000 military immigrants have moved to Yunnan and Guizhou. In 1391, the military population of the whole country reached 6.2 million. The military population of other areas were immigrants except those in densely populated areas. Hundreds of thousands of surrendered Mongolian troops and their families were scattered in various health posts.
The second is the political immigration of the capital. Zhu Yuanzhang fixed his capital in Nanjing. Nanjing became the focus of immigration in the early Ming Dynasty. Intellectuals, wealthy families, craftsmen, soldiers and their families with lofty ideals moved into Nanjing in large numbers, making it a huge city with a population of about one million. However, the largest number of soldiers and their families in the capital, totaling up to 700,000 people. Zhu Yuanzhang also established Zhongdu and built the capital city in his hometown Linhao. A large number of wealthy households from the South moved into the region, with a military and health population of nearly 200,000. Zhu Di, the founder of the Ming Dynasty, moved the capital from Nanjing to Beijing, accompanied by a large-scale immigration. Beijing has a population of more than 800,000, of which about 700,000 are servicemen and their families. Nanjing then declined.
Third, economic migration in general regions. The government organized immigrants to North China and other areas. The legend of the great locust tree is related to such immigrants. On the monument of Qixian immigrants, we can see that the government is strict about the organization of immigrants. The 110 households are a village with a tun commander. These settlements are widely distributed and have become a common and important suffix word for place names in the north. The government issued letters and seals for immigrants, who came from all parts of Shanxi to collect letters and seals under the great locust trees in Hongdong County, and then went to different parts of the country. The nature of other immigrant place names is generally similar.