Can't change, must be the same, identity card number is a citizen's only, lifelong number. Reissuing is just a change of some information, such as photos, the validity period of ID cards, etc.

Article 3 of the Law of the People's Republic of China on Resident Identity Cards stipulates that the citizenship number is a unique and lifelong identity code for every citizen, which is compiled by the public security organs in accordance with the national standards for citizenship numbers.