The topic of this final thesis is Japanese business ethics, emphasizing the importance of applying ethical principles and moral values in business. General research methods and professional literature were used in the process of creating this thesis with a theoretical approach. The topics under examination relate to the understanding concept of ethics through various ethical theories, as well as business ethics, which significantly influences the economic development of society. This thesis presents the development of ethical systems in Japan, the origins, and principles of the samurai ethical code, and its application in modern business world. In order to better understand their business culture, different model and methods of doing business are presented, along with their impact on Japanese society. The purpose of this thesis is to provide a deeper insight, better understanding, and highlight the importance of applying ethical principles and moral values in everyday business. Successful companies like Toyota and Canon measure their success not only in terms of financial gains but also through ethical value systems that are implemented in all aspects of their business. Business ethics is a key component of every successful business and developed society that strives to create a better, environmentally sustainable, more responsible, and fairer world for every individual.