1. The credit card limit is determined according to the comprehensive evaluation of the applicant by the bank, including the applicant's age, gender, income, work unit, credit history, asset status, education, etc.

2. According to the comprehensive evaluation results of the applicant, the bank gives corresponding credit lines, and different people apply for different lines.

3. For the driver's credit card of China Bank, the credit limit of ordinary card ranges from 50,000 to 50,000, that of gold card ranges from 1 10,000 to 50,000, and that of platinum card is above 50,000. The specific limit varies from person to person.