The problem of food safety is directly related to people's health, and also has the impact on politics, economy, society and foreign trade. Since entering 21 st century, the tendency of global economic integration is more and more obvious, and food export volume in China is increasing year by year. But the problem of food safety effects the long-term development of export trade in China to some extent. Thus, we should pay much attention to the problem on food safety and its standard system construction. This thesis mainly discuss the food safety connotation, overview on the food safety standar...