Abstract: Civil Science fans”is a general social phenomenon of China. But as a special group devoted to the so-called scientific activities outside of the science community, they are different from amateur scientists (or science amateurs). Most of Civil science fans have similar behavior model and psychological tendency, and the most common characteristic is that they can not have proper communication with the science community. Most of them have more or less paranoid psychological tendency, and it can give an explanation to some of their characteristics such as overhard working, highly self-sacrifice,and self-complacency. Their behavior looks from outside like Performance Art, but in some sense it implies some unconsciously sorcery psychology. The research on civil science fans will give a new dimension to understand the relationship among science, the public and society, and will provide some advice for science communication.