Bankruptcy and losses of many banks In the recent financial crisis in the global economy, the importance of paying attention to the liquidity of commercial banks as an indicator that can indicate the health and stability of the banking system has doubled. Liquidity risk is a subordinate risk and can arise from operational risks, information systems risk, credit risk, exchange rate risk, and so on. The purpose of this study is to investigate the factors affecting liquidity risk in commercial banks. The research method in the present study is interpretive-analytical and the tools used in this research have been library and documentary studies. The results of this study show that fluctuations in many variables such as: GDP, inflation rate, exchange rate and other macroeconomic variables have a significant effect on liquidity risk and increasing liquidity risk has reduced banking stability and increased the likelihood of bankruptcy of banks. .