The credit line of CCB credit card is generally related to the credit line of CCB credit card of the cardholder. The credit line cannot exceed the credit line of credit card, and the maximum loan line cannot exceed 50,000 yuan. China Construction Bank credit card loan, also known as cash installment, is a credit card cash credit business launched by China Construction Bank. In addition, the overpayment and temporary credit line in CCB credit card are not included in the calculation of loanable credit line, which means that the overpayment and temporary credit line of credit card have nothing to do with credit line.