If the main card of an ICBC credit card is cancelled, the secondary card will also be cancelled. If only the secondary card is canceled, the main card can still be used.

Under normal circumstances, if your credit card has no outstanding balances, excess overpayments or other installment payments, you can cancel the card. The cancellation method is as follows:

1. Apply by phone. When canceling ICBC's domestic credit cards, you first need to call the official customer service to apply for cancellation. Bank staff can help you cancel after confirming that your credit card is not in arrears.

2. Handle at bank branches. You can bring your ID card and bank card to a bank branch to cancel the credit card. If it is done at the counter, the overpayment in the credit card can also be withdrawn.

It is necessary to remind that the main ICBC credit card can only be canceled by the primary card holder, while the secondary card holder can apply for cancellation by the primary cardholder or the secondary card holder. Once the primary card is canceled successfully, the secondary card will also be automatically canceled. Therefore, the person who cancels the credit card must be the cardholder himself.