This depends on the requirements of library institutions for candidates' majors in those years. There are two situations:

1. If there are no professional requirements for candidates in the recruitment of libraries and institutions, candidates of any major can apply for the recruitment examination of their own units.

Second, in the recruitment of library cause, if it has been stipulated and restricted that only students majoring in library management can apply for the exam, then students of other majors can no longer apply for the exam.