Nowadays, ethics in the public health is a very important and fundamental issue in the area of public health and the research in the field of health. There is a major difference between the ethics in the public health and the medical ethics. The society is more noticed in the public health, while the patients’ rights have priority in the medical ethics.In this paper, it has been tried to examine the ethics in the interventions of health system, ethics in the systems, health organizations and ethical codes in this area. The ethical considerations of the health system including political acceptability, justice, social participation and confidentiality have been mentioned. Also, the 12 ethical codes of the health organizations have been raised. Discussing and being informed of the ethical codes are necessary for the policymakers, planners and providers of health-treatment services.