For most banks, including Industrial and Commercial Bank of China and China Construction Bank, if you want to apply for another credit card with your existing credit card, the cardholder generally needs to use the original credit card for more than 6 months and has no bad record, and can apply for another credit card in another bank.

For domestic banks, the card processing time is relatively short. Credit card holders in China Bank can use their cards for more than three months, and a few banks need cardholders to use their cards for more than one year.

Extended data:

Under normal circumstances, the cardholder can take the original credit card as proof of financial resources and show the original ID card, so that he can apply for another credit card in another bank on the basis of the original cardholder's card. For some banks, if they want to handle the card business, they may also need to submit a copy of ID card, a copy of credit card, proof of financial resources and other related materials.

References:

Can a credit card be used as a card? Generally, the original card needs to be used for more than 6 months-People's Network