There is no limit to the number of credit cards a person can handle in a bank, but it should be noted that multiple credit cards in a bank share a credit limit, that is, one card is 3,000 yuan, and the other two cards are also 3,000 yuan. However, the annual fee should be calculated separately. I suggest you not handle it more. And it's not easy to take care of it if you do too much, which is not good.