If it is a credit card of China Merchants Bank, the most important application condition is that you have reached the age of 18-60 and have a stable job and income. /kloc-Users under the age of 0/8 cannot apply for the master credit card temporarily. If your parents have CMB credit cards, you can try to apply for their supplementary cards. You are also welcome to apply for other CMB credit cards at any time when you are an adult.