This study aims to investigate the effect of business ethics on the good corporate governance implementation in the state-owned enterprises in the North Sumatra region. The variables used in this study are business ethics and good corporate governance implementation. In this study, 80 questionnaires were distributed and 64 questionnaires were returned and analyzed. Findings indicate that business ethics has a negative and not significant effect on the implementation of good corporate governance in state-owned enterprises in the North Sumatra region. This study suggests that the state-owned enterprise management be more intense in understanding ethical values in the business carried out by the company along with the implementation of good corporate governance.