The uncontrollable spread and prevalence of the Covid-19 epidemic is shaking the world. Covid-19 is primarily a natural disease, but the Pandemic situation it brings has created a serious social disease. Hatred, divided sides, and selfishness toward others are taking advantage of the atmosphere of “miscommunication(不通)”. In this situation, we will have to think of two dimensions of countermeasures. One is the response to natural diseases. In this regard, it is to look at humans from the perspective of diseases, such as understanding infectious diseases objectively and scientifically, taking care of their own hygiene and keeping physical distance. The other is a response to social diseases. Remove the mind of jealousy, criticism and prejudice and restore relationships between people. In order to cure social diseases and restore relations between people, this paper examined the ideas of Tan sitong(譚嗣同), which emphasized the philosophy of “Communication(通)” among modern Chinese thinkers. Tan sitong lived in an era of disconnection, blockage, and closure. Tan sitong wanted to achieve an “equal(平等)” society by blocking people and breaking down all kinds of things that had been restrained. He reasoned this situation humanistically and emphasized the principle of “Communication” in finding ways to overcome it. To work is to break down a wrong relationship on the one hand, and to build a new one on the other. Tan sitong’s philosophy of “Communication” is not only the core of his new “Thought of Benevolence(仁學)” system, but also an important means for real society to ultimately move toward “Great Unity(大同)”, an ideal society.