The purpose of this research was conducted to find out how the ratio of earning ratios on PT. Bank Pembangunan Daerah Sumatera Barat. The research method used is the method of qualitative and quantitative data analysis. The type of data used, namely secondary data obtained from Bank Indonesia and the publication of the report of the regional development banks of West Sumatra 2013 period – 2017. The results of this study showed that the rate of ROA with an average of 2.18% bank is said to still be in the position of the less healthy. The level of ROE also showed the unhealthy conditions in the bank with an average of 8.32% which means that banks are inefficient in generating net income, while the levels of NPM with an average of 3.92% banks increase whice means that the bank is said to be good at generating net income.