Food quality and safety has attracted much attention in recent years. In this paper, the food industry chain is studied, and based on which a system aiming at food quality and safety management is built to improve the level of food quality and safety. Considering the different development stages of the food industry chain, we construct two food quality and safety management systems, e.g. system-1 and system-2, which are then compared to show their differences and connections. It is concluded that food quality and safety management needs the cooperation between the executive branches of the government and all the food industry chain nodes.