There is a library card machine in the hall. Just put your ID card in the location specified by the machine, and then click the card. The card can be delivered to you immediately, without any handling fee. Only with this card can you read in the reading room, because you have to swipe your card to enter the reading room. You can have this card if you only read books in the library and don't check them out. If you want to borrow Chinese books, you need to deposit 100 yuan in your card, and if you want to borrow foreign books, you need to deposit it in 200 yuan. The local customs where the money is collected should have signs, or you can consult the museum staff.

I hope the answer will help you!