Dog's surname, Chinese surname, existed in Han Dynasty, which was rare in Southern Song Dynasty. Both Han and Lisu people have this surname, only in Jiaxian and Zhoukou in Henan, Changzhi in Shanxi and Lushui in Yunnan. Dog Weiyang, a famous person in Han Dynasty, see Yin Ju. Dog sword was born in the Western Jin Dynasty.

Surname (surname) is a literal symbol to identify the blood relationship of China family. In the contemporary context, surnames have been combined into one, which is synonymous with surnames. Surnames or names composed of surnames are the appellation and symbol of everyone in social communication. Surname was a combination of surname and surname in ancient China. Surnames represent matriarchal clans and are associated with blood. The surname represents the aristocratic family of the paternal clan and is associated with the rank. China has a surname first, then a surname. The appearance of surnames is a sign that primitive people gradually got rid of ignorance. Surname and surname are two stages of the progress of human civilization. In the Northern Song Dynasty, Liu Shu's "Notes on the Mirror" said: "The surname is based on the place where his ancestors took the test; The surname is not divided by his descendants. " It is an important interpretation of the ancient concept of surnames.