Bu surname is pronounced bu (B incarnation). According to "Customs Pass", in the summer of that year, Taikang's younger brother was sealed in Xin (the old city is in the southeast of Heyang, Shaanxi Province), because his younger brother used to be a divination official, and later took the official name as his surname, which was called Bu Shi. Bu surname is the 92nd surname in China, with a large population, accounting for 0.04% of the Han population in China.

Extended data:

1. In the Northern Wei Dynasty, the northern Xiongnu took Xu Bu's compound surname, which was the compound surname in the northern region. When Emperor Xiaowen reformed, he was changed to a single surname. It is one of the four surnames of Xiongnu nobles (Huyan, Bu, Lan and Qiao). This is another branch of the origin of the surname Bu.

2. Xibo people in Shenyang, Liaoning, such as Bujana and Bukuso on the Richter scale, are all surnamed Bu.

3. After divining the official position in the Spring and Autumn Period, the official name was taken as the surname. Textual research based on surnames, a brief history of clans, etc. In the Spring and Autumn Period, Bu Yan of Jin State, Bu Tufu of Qin State and Bu Chuqiu of Lu State were all divination officials, and later generations took their official names as surnames and called them divination teachers.

4. Bu surname is widely distributed in China, especially in Jiangsu, Shandong, Anhui, Guangxi, Guangdong and Inner Mongolia. The Bu surname in the above five provinces accounts for about 67% of the Han population in China.