It refers to the process of reviewing the original materials such as research data, experimental records and questionnaires submitted by graduate students. This process is usually carried out by academic tutors or members of the review committee to ensure the authenticity, completeness and accuracy of the research data. By consulting the original data, we can know whether the researcher's research methods are scientific, whether the research results are reliable, and evaluate the credibility and popularization of the research conclusions. The review of master's original materials is an important link to ensure the award of master's degree and the recognition of academic research level.