There are several reasons why hr should check the resume more than three times.

1. First of all, HR saw the resume and thought it was appropriate. It needs to communicate with the employing department, and then re-correspond the resume according to the needs of the employing department.

2. Then HR needs to check the resume several times to confirm whether the resume information of the applicant meets the requirements.

3. Finally, there are resumes of other job seekers, which HR has compared many times.