1. The topic of the dissertation involves national science and technology secrets or national defense and military science and technology secret projects, and if the contents of the dissertation contain all or part of the contents of classified scientific research projects, it can be regarded as a classified dissertation.

2. The topic selection of the dissertation relies on horizontal projects, and the project undertaker and the entrusting unit sign a confidentiality agreement, which can be applied to be classified as a dissertation.

3 papers involving patent applications, in accordance with the provisions of the state on the administration of patent applications. If the patent examination and approval authority clearly needs to keep confidential, it may apply for a degree thesis that is kept confidential according to the final opinion of the patent examination and approval authority; When the examination and approval opinions have not yet been formed, they shall not be used as the basis or reason for the appraisal of dissertations.