Yu's family comes from Ji's surname, is a descendant of people, and takes the country as his surname. According to the New Tang Book Prime Minister's Pedigree Table, in the early years of the Western Zhou Dynasty, after the Shang Dynasty, Zhou Wuwang made great efforts to enfeoffment the vassal, and his second uncle was sealed in Zhi State.

Later, the descendants of Zhi Shu took the country as their surname, some took Zhi as their surname, and some went to town to take Yu as their surname and Henan as their surname. During the Spring and Autumn Period and the Warring States Period, there was chaos, and the descendants of Zhi Shu moved to Tancheng, Shandong Province, becoming Yu's family in Shandong Province.

Extended data:

The earliest spread and migration of the Yu family was in the northern part of Qinyang, Jiaozuo, which is the seat of the ancient kingdom and the birthplace of the Yu family. After the demise of Zhi State, the Yu people mainly lived in present-day Henan, and also mainly lived in Henan, such as Fangcheng, Wu Tang, Xuchang, Funiu Mountain and other places.

During the Qin and Han dynasties, people named Yu began to spread slowly in Henan, from Shanxi and Hebei to the north, from Anhui and Shandong to the east, and from Shaanxi and Gansu to the west. During this period, the Yu family mainly took the Central Plains as the center of communication and migration, forming three counties of Henan, Donghai and Hanoi. Among them, Yu, who entered Shandong in the east, was the most prosperous.

During the Wei, Jin, Southern and Northern Dynasties, Yu really went to the whole country. Due to the long-term disputes between warlords, the tragic situation of "white bones exposed in the wild, thousands of miles without chickens crowing" has caused many people surnamed Yu to follow the deserters south and head for the vast southeast region.

During the period of "Five Wild Flowers", the communication and integration between various ethnic groups were promoted, and the Central Plains became a battleground for military strategists. In order to escape the war in southern Henan, Yu recently went south to Hubei, and then moved to Sichuan and Hunan.