With the rapid development of the financial market, banks are faced with increasingly frequent capital flows and rapidly changing business environment. It is an important prerequisite for commercial banks to control their liquidity risk to deeply study the causes of liquidity risk and clarify its economic consequences. In the financial crisis during 2007-2009, American commercial banks were directly impacted by liquidity risk. The characteristics of their bankrupted banks are of great significance to the study of how to avoid bank liquidity losses. This study found that in aspect of the probability of commercial banks bankruptcy, the larger scale the banks’ current deposit is in the initial stage, the larger rate of the loan is. The larger the loan issuance ratio is in perportion, the worse the liquidity management of commercial banks’ efficiency acts. And other characteristics make the bank's bankruptcy probability greater. This result has reference significance for commercial banks in China.