The article began with the lack of current laws and regulations in food safety supervision mode. Then the key problems of food safety monitoring and security were analyzed. Finally, the building of system which was different from the general public to participate in the regulation of food safety evaluation system was proposed. The article focused on the analysis in the feasibility of constructing food safety evaluation system, the reality and the route choice. The author advocated building a public evaluation system, which served as a supplementary mechanism of current food safety monitoring system.