Abstract: Public emergencies have frequently happened in the recent years,which have caused great concern from governments and publics.The function of science and technology news in public emergency is mainly seen in four aspects:its warning function;its explaining,opinion-leading,and society-stabling function;its scientific knowledge-spreading function;and its scientific reflection and mass-supervising function.Report of science and technology news in public emergency should be correct and timely,and show deep humanity concern.Its function in public emergency should be strengthened.

Key words: public emergencies, science and technology news, function