As a credit card, of course, you can also spend it online. CCB's credit card online consumption is paid by account number. In the future, you can choose what you want to buy online, and then choose China Construction Bank when you pay, then enter your account number and some information, and choose "Account Payment" to pay. If it is the first time to pay by account, you need to enter more information, such as card number, expiration date, cvv code and so on. After using the account to pay, you only need to enter the card number and the mobile phone number registered in CCB, and then enter the SMS verification code to spend. However, there are restrictions on account payment, that is, the daily single amount of each card does not exceed 1000 yuan. However, some special websites, such as buying air tickets or traveling, may have a higher quota, depending on the settings of the merchants.