The research was conducted on the basis of bank vital role in accelerating the pace of economic growth of a country, so as to always maintain public confidence in, the banks must strive to demonstrate the performance of a healthy and well one way is with a bank financial ratio analysis. The financial ratio analysis is an analytical technique that is often used, because it is the most rapid technique to determine the bank's financial performance. Banking financial ratios that used in this study are liquidity ratios, profitability ratios and solvency ratios. The liquidity ratio is used to measure the bank's ability to meet its short term obligations. Earnings ratio is used to measure the level of business efficiency and profitability achieved by the bank. The solvency ratio is used to measure the bank's ability to meet its long-term liabilities. These results indicate that based on liquidity ratios, financial performance of PT. Bank Tabungan Negara (Persero), Tbk. look less good, based on rentability ratios, financial performance of PT. Bank Tabungan Negara (Persero), Tbk. was pretty good, and based on solvability ratios, financial performance of PT. Bank Tabungan Negara (Persero), Tbk.. was not good.