Thinking about the background of new museum movement, the acceleration of museumization around the world was proposed in this article, as well as the current mission of science and technology museums on representing cultures of science. Based on this, the significance of displaying the controversies and uncertainty in contemporary science and technology in science and technology museums was discussed. Furthermore, diversity of actors that are essential to participating in the representation process of science was proposed, and thus emphasized the complexity of ethical issues related to science popularization that science and technology museums have to confront.