Han, also known as the Chinese family is the main part of the Chinese nation, for the ancient tribes and culture, descendants of the tribe or Chinese people. The han nationality or a in history has never been interrupted, long, also is the world's most populous nation.

　　According to the pre-qin literature records and xia, shang and Zhou Li scope, the ancient ancestors of the han nationality can be generally up long mountain, mount tai in the east and west of Huang Hezhong, downstream for activity area; Are mainly distributed in the area of yangshao culture and longshan culture of these two types of neolithic culture, as the pioneers of the han Chinese ancient cultural relics. The two civilization as the representative of the circle of Chinese civilization.

　　For the ancestors of the han emperor and yan emperor in the central plains tribe alliance leader and an outbreak of e. springs, yan emperor tribes, incorporated into the huangdi tribe, yanhuang alliance into shape. Later, they defeated here in integration involved problems.the zhuolu war nine li group leader human-god, expand the coalition forces to today's shandong province. And then to yan tribes and huangdi tribe as the main body, and formed a larger part of shandong province here tribe of huaxia tribal alliance, huaxia basic fixed source. Before the 2100-2100 BC in the middle and lower reaches of the Yellow River descendants of the yellow emperor group has established the xia dynasty, shang dynasty and zhou dynasty.

　　In 221, before the qin dynasty unified China, huaxia clan from division to unity again. Han the pre-qin period claimed to China, from the beginning of the han dynasty and gradually appear "han" claim. Therefore, huaxia clan has another name: han. But the original title "huaxia" did not disappear, but with the name "han" used together ever since.

　　According to genetic research compare migration history record of fudan university, the expansion of the han nationality is mainly from north to south in the history of the mobile population. Before the jin han are mainly distributed in the north, and later due to factors such as always fine the disorderly moves southward migration, migrating south han and gene with the han nationality and language different aboriginal mixed in southern China. From north to south in the history of this mass movement has also changed the civil population distribution density.