The re-examination of postgraduate examination is the second interview for candidates to enter the recruitment unit through the national examination line. That is, after passing the postgraduate entrance examination (preliminary examination), the second interview organized by the applicant institution.

The national unified postgraduate entrance examination (hereinafter referred to as "postgraduate entrance examination" or "unified examination") refers to the general name of the relevant examinations organized by the education authorities and enrollment institutions for the selection of postgraduate students, and consists of the initial examination and re-examination organized by the national examination authorities and enrollment units. It is a selective examination, and the type of academic qualifications admitted is general higher education.