If it needs to be changed to the same one, the household registration book will be reissued, and the head of household needs to go to the local public security bureau to handle it. The general processing time is 5 working days.
Extended data
According to the Regulations of People's Republic of China (PRC) Municipality on Household Registration
Article 17
When the contents of household registration need to be changed or corrected, the head of household or himself shall report to the household registration authority; If it is verified through examination, the household registration authority shall change or correct it.
When the household registration authority deems it necessary, it may require the applicant to issue a certificate of change or correction.
Article 18
Citizens who change their names shall be handled in accordance with the following provisions:
1. When a person under the age of 18 needs to change his name, his parents or adopters shall apply to the household registration authority for registration of change.
2. When a person who has reached the age of 18 needs to change his name, he or she shall apply to the household registration authority for registration of change.
Article 19
When a citizen's household registration changes due to marriage, divorce, adoption, claim, separation, merger, disappearance, recovery or other reasons, the head of the household or himself shall declare the change registration to the household registration authority.
Baidu Encyclopedia-Regulations on Household Registration in People's Republic of China (PRC)