As annual problems，food safety issues have become frequent in 2011.There are some features of food safety public opinion，such as the strong seasonality，linkage and cross-region and so on.The public reporting becomes the main exposure way，followed by media and government supervision.The opinion propagation paths of both news media and cybermedia have increased，whereas the latter exposed some shortcomings.As far as the responding capacity is concerned，the responsibility of the main is lack，meanwhile the supervision of the subject is in a single.Considering the lack of prevention mechanism of crisis subjects，the subjects show positive attitude towards，while the effect evaluation is so so.