尉迟氏源自西域于阗,至西晋时,其中一支率部东迁,先后活动于并、朔地区,其后历经北魏、东魏—北齐、西魏—北周历史时期,逐渐完成了鲜卑化乃至汉化的过程;而另一支则仍留居西域地区,与中原内地接触尚少,汉化程度相对薄弱。然随着隋唐大一统 Yu Chih-shih originated from the Western Regions in the late Qing Dynasty and moved to the Western Jin Dynasty. One of his troops headed eastward and successively moved to and from the Shuo area. Later, after the Northern Wei Dynasty, Eastern Wei-Northern Qi Dynasty and Western Wei Dynasty-Northern Zhou Dynasty, While the other one still remained in the Western Regions. There was still little contact with the Central Plains and the degree of localization was relatively weak. However, with the unification of Sui and Tang dynasties