1. activation at the bank branch counter: just go to the bank counter with your ID card and credit card.

2. customer service telephone activation: dial the 24-hour customer service hotline shown on the back of the credit card, enter the cardholder's card number and inquiry password, and select the credit card to activate according to the voice prompt.

3. Online activation: firstly, log in to the online banking page of the issuing bank's credit card, enter the cardholder's card number and inquiry password, find the "Credit Card Activation" page, and enter verification information such as reserved phone number according to the prompts on the page. After the identity verification is passed, the credit card can be activated.