To cancel the credit card of China Merchants Bank, you need to settle all the money in the credit card first. There are two specific cancellation methods:

1. Cancelled at the counter of China Merchants Bank. The cancellation person only needs to bring the China Merchants Bank credit card and my ID card to the counter of China Merchants Bank to seek the help of the staff, and then cancel the credit card with the help of the staff.

2. Call the customer service telephone number of China Merchants Bank at 4008205555. After making a call, follow the voice prompts to enter the manual service, and truthfully provide your ID number and related information to the customer service, you can cancel the CMB credit card.