We analysed the trend of food safety network public opinion in China during 2007-2014 by using the data of network public opinion monitoring platform. Based on content analysis，we then explored the main bodies’ behavior characteristics，such as the government the media and internet users，and the object-food safety incidents’ risk characteristics of food safety network public opinion in China. The network public opinion of food safety in 2007-2014 has experienced four stages，but the research on main bodies’ behavior characteristics showed that the environment of food safety network public opinion has not changed；government plays an important role in the exposure of food safety incidents，but Internet users don’t trust them. Research on the object of network public opinion showed that food safety incidents’ risk characteristics are obvious in 2011-2014. We also found that meat and its products，dairy products and others are the major food types of food safety incidents；the abuse of additive or substance abuse is the main reason of food safety incidents in China；food safety incidents mainly occurred in the processing period；large and medium food enterprises are the main responsibility bodies of food safety incidents；provinces in the eastern coastal areas of China，such as Guangdong Province，Beijing，Jiangsu province，are the main areas of food safety incidents. Finally，we put forward some policy recommendations.