This research aims to know the management of working capital bank, to know the level of profitability of the bank, to find out the effectiveness of the management of working capital in the bank, working capital management and effectiveness against the profitability of banks. Doing research on PT Bank Negara Persero Tbk Savings listed in Indonesia stock exchange in 2012-2014. The research method used is descriptive research with quantitative approach. The data used are secondary data. The focus of the research is the working capital of the bank and the ratio of profitability and liquidity ratios. The results showed that the Savings Bank Negara Persero Tbk has been said to be effective in the management of working capital, because the ratio of profitability and liquidity ratio shows the percentage levels that are effective. Whereas reports on the sources and uses of working capital also pointed out that the source is greater than the USAge. Which means the management is already effective in the management of working capital.