Different schools and institutions may have different requirements for the duplicate checking rate of undergraduate papers. Generally speaking, many schools require that the duplicate checking rate of undergraduate papers should not exceed 30%, and papers exceeding this ratio need to be further revised or signed by tutors.

Specifically, if the duplicate checking rate of undergraduate thesis is less than or equal to 30%, then this thesis can apply for defense. If the duplicate checking rate is between 30% and 50%, then this paper needs to be revised and checked again after revision. If it is still unqualified, you can cancel the qualification for reply. If the duplicate checking rate exceeds 50%, then this paper needs to be evaluated for academic misconduct, and if serious plagiarism is found, the defense qualification will be cancelled.

In addition, some schools or institutions have stricter requirements on the excellent grade of undergraduate thesis, such as the duplicate checking rate below 10%. For master's and doctoral dissertations, the requirements will be more stringent. In general, the duplicate checking rate of master's degree thesis is less than 20%, and that of doctoral degree thesis is less than 10%.

In a word, the specific eligibility criteria of duplicate checking rate of undergraduate thesis need to be determined according to the requirements of schools or institutions. When writing a paper, we should reduce the duplicate checking rate of the paper as much as possible to ensure the quality and originality of the paper.