Public health is coming to become the focus of the public’s attention at the beginning of 21st century and the ethical research of public health flourished at that time. The theme of public health ethics is the relationship between“rights and good”, and I did the ethical research on public health closely around the theme in this dissertation. Firstly, I analyze how the viewpoint of“rights prior to good”and“good prior to rights”would treat public health respectively. Secondly, I provide ethical princip...