It takes about 1 hour. The analysis time of different types of papers is different. It takes 2 to 3 hours for master's doctoral thesis and core journal thesis, 1 hour for undergraduate thesis and 30 years for ordinary journals. Because March-July is the peak period of duplicate checking in colleges and universities every year, the time for duplicate checking of papers will increase obviously. Therefore, it is suggested that paper users should try to avoid duplicate checking during the peak period, and the duplicate checking time and cost will increase obviously.