This study aims to analyze the effect of ethical identity index and company size on Islamic banking performance as measured by shariah conformity and profitability (SCNP). The sample in this study were 48 Islamic banking financial reports taken from the 2014-2017 period. The data analysis method used in this study is multiple linear regression with panel data. The results of this study indicate that the ethical identity index affect shariah conformity and profitability, but company size does not affect the performance of shariah conformity and profitability. The implication of this research is that Islamic banking is expected to improve the identity of Islamic ethics through disclosures in financial reports.