The duplicate checking rate of graduation thesis varies with different schools and majors. Generally speaking, ordinary undergraduate colleges usually require that the duplicate checking rate of graduation thesis should not exceed 30%. The stricter 985 or 2 1 1 school requirements may be lower, possibly below 20%. If it is a master's thesis, the repetition rate should be less than 10%, and the duplicate check of excellent graduation thesis should not exceed 15%.

Different duplicate checking systems have different algorithms and databases, so the duplicate checking results will be different. For the first draft of the paper, it is suggested that free duplicate checking software such as HowNet, paperfree and papertime can be used. And for the final draft, use the duplicate checking system required by the school to ensure that the paper meets the academic requirements.