The purpose of this study is to analyze the effect of CAR, NPL, NIM, BOPO and LDR on Return On Assets (ROA) on conventional banking which are listed on the Indonesia Stock Exchange in 2013-2014 sourced from published annual financial statements of the banking. The population used for the conventional banking are listed in the BEI during 2013-2017. The analysis technique used in this study is multiple linear regression analysis. Hypothesis testing results show that CAR, NPL, LDR, and BOPO prove negative to ROA. While NIM has a positive impact on ROA.