Abstract: With the transformation from academy science to post academy science, the scientific community and the government, enterprises, the public form a funnel-shaped structure, which the main features are alliance, nested and public absence. The structure although has promoted the rapid development of science and technology, but led to the expansion of social risks and the increase in the problem, which further exacerbated the tense relationship between science and society. Fundamentally, science & Technology embeds in society. Therefore, science & Technology and society must keep balanced tension in order to benefit and not endanger the society. For the balanced tension, we should construct a symmetrical governance structure of Science & Technology. Based on the theoretical basis and practice of scientific governance, the paper proposes a diamond-shaped to replace the funnel-shape of governance structure. The new governance structure requires to establish distributed "scientific republic", reshape the public's function and structure position, determine the system boundaries, develop intermediary organization and "scientific brokers", set the democratic consultation platform.