The specific method to check the total outstanding balance of China Merchants Bank credit cards is as follows:

1. Open Baidu search, enter "China Merchants Bank" in the search bar, find the official website of China Merchants Bank after searching and click to enter .

2. After entering the official website of China Merchants Bank, find the "Personal Banking Public Edition" item and click to enter.

3. After entering the personal banking public version login interface, enter the corresponding information to log in.

4. After logging in successfully, find the "Account Overview" item under the account management item and click to enter.

5. After entering the account overview, the total liability is the total debt owed by the credit card, including the debt that has been billed and the bill has not been billed; you can also subtract the available limit from the credit card limit to get The result is the total amount owed.