The credit card limit of the same bank is shared. According to the information of China Travel Service. Com, the limits of two credit cards applied for in the same bank are shared, and the sum of overdraft limits of all cards cannot exceed the limit of the card with the highest limit. If you hold a dual-currency card, the quota of RMB and foreign currency is also shared. If the original credit card line is used for consumption installment, it will occupy the available line (such as consumption installment, bill installment, cash installment and merchant installment); If you handle large special installments (such as car purchase installment and house purchase installment), you will not occupy the available quota. So you don't have to apply for multiple credit cards in the same bank in the future. After all, the amount of credit card processing will not change, and more annual fees will be paid.