Purpose - Ethics, which constitute the behaviors that should be abided by or avoided by parties, are all material and non-material factorsthat include social, cultural, economic and scientific values that are the basis for inter-personal relationships, and are a discipline thatdeal with behavioral norms and rules such as correct or wrong, good or bad, which people have to abide by. In this regard, the purposeof this study is to demonstrate business ethics in corporate governance and assessment of the need for business ethics, ethical leader andethical behaviors relationship in corporate governance, explanation of organizational ethical climate and its impacts on workers as wellas perception of workers in banking sector regarding the ethical rules implemented in the context of corporate governance and theimpacts of such rules.Methodology- In this study, questionnaire method was used as data collection method and ten demographical questions as well as ninequestions regarding ten ethical leadership scales, eleven ethical climate scales and five non-ethical behavior scales were asked in thequestionnaire. This study is a relational screening model that reviews the relations among two different situations that can affect eachother in terms of several variables. Findings- There were no statistically significant differences in terms of "ethical leadership" scalescores between males and females in this study and there was a significant difference in terms of "ethical leadership" and "ethicalclimate" between married and single individuals observed. The desire of married individuals to work in a more stable environment andtend to be less risky also lead to the valuing of ethical leadership and ethical climate. When we look at educational status and educationareas, there was a statistically significant difference between "ethical leadership" and "ethical climate" scale scores.Conclusion- This study is a guide and it will play a role and contribute to institutions in determining their own ethics and spreading thisethics to the personnel working at bank through training to be given to employees of the institution. It is foreseen that the bankingstructure, which is a growing and spreading system, can develop even more with the ethical rules internalized by the employees inaddition to the the written ethical rules, which can affect the business loyalty and motivation of the employees in the bank.