Abstract:Based on the traditional media, digital new media, especially We-media, the massive network information has becoming a gathering and divergencing place for scientific and technological public opinion, unexpected events causing by bad scientific and technological public opinion are likely to produce great negative impact on society, in the period of rapid development of information and the maturity of Internet application technology in China. For the in-depth research on the propagation characteristics of the public opinion of science and technology,the monitoring status of science and technology public opinion are sorted out,and the positive energy guidance and emergency methods of scientific and technological public opinion obtaining are obtained through the analysis of typical cases, expecting to improve the emergency response ability of the scientific and technological public opinion emergencies for summarizing the experience .