The citation rate of duplicate checking is a reasonable proportion. If you quote too much or use the format and symbols incorrectly, it will be regarded as plagiarism and marked as red by the system. Citation rate: the citation rate of the whole article, that is, the proportion of quoted words in the whole. Did you copy and paste other people's papers? If you write word by word, the repetition rate will not be very high. In this era of internet and information explosion, it is found that there are some improper citations, excessive citations and even plagiarism in graduation thesis to varying degrees. In order to standardize the management of dissertations and promote the construction of a good style of study. Colleges and universities attach great importance to the falsification of dissertations, and the duplicate checking system plays an important role in the quality monitoring system of dissertations.