Generally speaking, duplicate checking of graduation thesis is to submit your graduation thesis to the duplicate checking system required by the school, and then the system will compare your thesis with the data collected by the system itself. After the test, there will be a test report, and any similar or duplicate parts in the system database will be marked. Red indicates serious duplication, orange indicates partial similarity, and green indicates that no duplication has been detected. Each school has different requirements for the repetition rate of papers. Generally speaking, the repetition rate of undergraduate thesis is not more than 30% to be qualified, but some schools may require more stringent requirements, such as not more than 20%. Some schools also have requirements for chapters and paragraphs in the thesis, and this school will make corresponding announcements, which require students to pay more attention. At present, most colleges and universities use the duplicate checking system of HowNet.