I. Enter the mobile banking of Bank of China, find "My" in the lower right corner, and click Enter.
2. After entering my account, find the item "My Account" and click Enter.
3. After entering my account, find the bank card whose card number you want to check, and click Enter.
4. After entering the bank card, find the item "Show complete account number" in the upper right corner, and click Enter.
5. At this time, you can see all the card numbers of this card. You can copy the card and save it if necessary.