The mid-term defense of graduation project is mainly to check what students have done, and then to guide and modify, so it is more important for the whole defense process. But the most important thing is the final defense, because it determines the final result. Graduation thesis defense is an important form of organized, prepared, planned and evaluated papers. The mid-term defense of graduation project with extended information is more important for the whole defense process, because the mid-term defense is a good guide for students' papers, because the tutor checks what the students have done and then guides and modifies them, but the most important thing is the final defense. Graduation thesis defense is an important form of organized, prepared, planned and evaluated papers. After the graduation thesis defense, the defense committee shall evaluate the thesis performance according to the graduation thesis and the author's defense. In order to make the grading moderately balanced, schools should formulate grading principles or standards in advance. The graduation thesis scores are divided into five grades: excellent (90- 100), good (80-89), fair (70-79), passing (60-69) and failing (below 60).