| The objective of this study is to determine the impact of Good Corporate Governace of company’s financial performance. Financial performance in this study is measured with three financial ratios which are Return on Assets, Return on Equity and Net Profit Margin. Data that is used for this research is secondary data. The sample is consisted on 30 companies that listed on The Indonesian Stock Exchange which published the financial report for 2006 to 2008 period and also fall into Corporate Governance Perception Index score that based on the assessment of The Indonesian Institute for Corporate Governance. The analysis method that used is the simple linear regression. Based on the results of regression tests, it shows that Good Corporate Governance had not significance impact on the company’s Return of Assets, Return of Equity and also Net Profit Margin ratio. |