The advantages of credit card are: avoiding carrying a lot of cash, exchanging consumption points for gifts, understanding consumption habits through consumption bills, controlling consumption, making money by using interest-free period, using credit card for daily consumption, and buying low-risk and liquid wealth management products in cash. Disadvantages: it is easy for people to have no planning, no sense of crisis, strong dependence on credit cards, unnecessary impulsive consumption, and tend to buy luxury goods, which is beyond their actual purchasing power.