Delete the corresponding information. For anonymous papers, the author's name and tutor's name should be hidden in the cover and title page, and the number should be used instead of the author's name, which can keep the major and research direction. At the same time, the information such as college, student number, thanks, publishing papers, attending academic conferences, etc., as well as copyright pages, postscript and other contents that may lead to the disclosure of the author's information (personal information such as student number should also be hidden in the doctoral thesis self-evaluation form).