The paper explained the relationship between the using of credit card at the monetary policy and the impact on inflation, economic growth, Total loans, liquidity and profitability. Evidence from Egypt for the period of (2011-2021), with quantities case study had been explained in the conduct of the research and collecting main data to measure the effect of the using of credit card on the system in Egypt through inflation, economic growth, Total loans, liquidity and profitability. Some of the findings of the study are: (1) With these evaluation of the effect of credit card on inflation, economic growth, Total loans, liquidity and profitability ,we find that the credit cards had an impact on all these indicators.

The use of credit card was spend at the customer with an effect on macroeconomic conditions. The central bank can affect the level of consumption through interest rate policy with transmission of monetary policy through two channels one of them for lending and the other for credit .credit channel can increase with international external financing. the exception of credit cards from the monetary policy .the key of income is control the credit card channel and the interest rate also effect on the credit channel.