According to the inquiry of Henan Education Network, the content of the joint examination of nine schools in southern Henan is very difficult, such as Chinese and mathematics subjects. Chinese examination pays attention to reading comprehension, which requires not only the understanding and analysis of the text, but also the ability to think and judge. Mathematics examination focuses on examining candidates' logical thinking and mathematical application ability.

The answer time for the entrance examination of Henan Nine Schools is very tight, and the examination time for each subject is only 1.20 minutes. Candidates need to answer all the papers in a short time, so it is very difficult for Henan nine schools to take the joint exam.