The duplicate checking rate of undergraduate graduation thesis is generally 30%, and some strict schools even require it to be lower than 15%. In order to ensure that the undergraduate thesis can successfully pass the duplicate checking test, students are advised to reduce the duplicate checking rate as much as possible, do a good job of citation and annotation, and avoid plagiarism and over-citation. At the same time, the specific requirements of the duplicate checking rate need to be subject to the relevant regulations of the school.