1. First of all, before you cancel your credit card, you need to know the cancellation policy of China Merchants Bank's credit card. The credit card closure policy of China Merchants Bank includes active closure and passive closure.

Secondly, you need to prepare basic information such as credit card number, ID card and mobile phone number, and prepare the latest bill.

3. Finally, before closing the credit card, you need to clean up the credit card bill, including all outstanding money, unused points, coupons, etc. , until the bill balance is zero.