The source and type of graduation thesis have no influence on the grade. Analysis of Factors Affecting the Quality of Undergraduate Graduation Thesis Abstract: Taking Heze University as an example, this paper makes an in-depth analysis of the factors influencing the quality of undergraduate graduation thesis. In this paper, grey correlation analysis, correlation analysis and path analysis are used to analyze the influencing factors of graduation thesis of a major in Heze University. The results show that the topic, research methods and conclusions of the paper are positively related to the results of the paper. The number of words in the paper format, the format of references, the number of references and typos are all closely related to the paper results, which indirectly affect the paper results mainly through the topic selection, research methods and conclusions. Students' writing efficiency, students' writing attitude, debate process, debate statement, teacher's guiding attitude and teacher's guiding efficiency, which affect the dynamic quality of the paper, are all directly influenced by themselves, while the topic selection, research methods and conclusions of the paper indirectly affect the performance of the paper.