Yes Generally speaking, the school will keep the paper documents of undergraduate graduation thesis for 5~6 years, while the electronic documents burned on CD-ROM will be kept permanently. Relevant departments of the Education Bureau will also conduct spot checks on some undergraduate graduation theses within 3-5 years. The enrollment of colleges and universities in China is very large. In order to avoid plagiarism, the Ministry of Education requires all proofreaders to check the coincidence rate of graduate dissertations.