Student ID number and good score account are two different systems, and canceling good score account will not affect the existence of student ID number. So the student ID number will still exist.

Cancelling the good score account only clears your data on the good score website, including your personal information and study records, and will not affect your data in other systems. So your student ID number will not disappear because you cancel your score account.

If you want to delete the student ID number, you need to cancel it through formal channels. The specific operation method can be consulted with the local public security department or relevant institutions.

In short, the cancellation of the good grades account will not affect the existence of your student ID number. If you need to cancel the student ID number, you need to operate through formal channels.