After the graduation thesis is finished, duplicate checking is put on the agenda. After the doctoral thesis is written, it is particularly important to check the duplicate of the thesis. After checking the repetition of the paper, we must know the repetition rate of the paper. If the duplicate checking results show that the repetition rate is high, it is necessary to modify the duplicate part in time and then check the duplicate of the paper.

First of all, it is clear that the repetition rate of doctoral thesis is not uniform. According to different universities and different types of papers, the repetition rate of papers is different. However, from the current situation, the repetition rate of doctoral dissertations generally needs to be within 5- 10%, which may be lower than 5% in strict universities. Therefore, the requirement for the repetition rate of doctoral thesis is quite strict, which actually causes many students to fail in checking the duplicate thesis.