In essence, science communication is a person-to-person interaction with ethical attributes. First, the communication subject and the audience have moral judgment. Second, the change of the science communication model is influenced by social morality. The third is the moral attribute of scientific knowledge itself. However, unlike scientific research, in addition to being scientific, authentic, and normative, science communication should also have fairness in the way of dissemination, justice in the motivation of dissemination, and criticalness in the attitude of communication.