The duplicate checking institution of Anhui Education Examinations Institute is a system, software and website specialized in duplicate checking and paper testing, and Hefei is also owned by this institution. These institutions include related database resources. After uploading the test paper to the duplicate checking institution, the duplicate checking institution of Anhui Education Examinations Institute will compare the test paper with the system data resource database, and get the similarity with the major discussion libraries through a certain duplicate checking algorithm.