It was a shock event, the problem of garbage 'mandu-so' occurred on june, 2004 that arouse citizen's concern about food safety. The multiple and complex food safety system of Korea was a cause of the problem. When the risk of food is found, it is often impossible to research scientific examination and to operate traceability system. In many advanced countries, after they experienced serious risk of food like a BSE and zoonosis in mid-1990th, restructuring new food safety system in 2000th. In Korea, food safety TFT were established in the office for Government Policy Coordination in August, 2003. However, it is likely to take much time to confirm a stable food safety organization, because 8 departments of central government are involved in the system. Although the related departments have reported the present situation of advanced nations, interpreting the result differently according to their own interest. This thesis focus on correcting biased explanation, summing fragmented foreign cases, and introducing new hygiene systems. This study also have two major standards to analyze food safety system of advanced countries. The one is the risk analysis that is composed of risk assessment, risk management, and risk communication. When the advanced countries designed recent food safety systems, the risk analysis has been used as an approach method. The another standard is governance level that is divided multiple agency, single agency, and integrated system. It is said to integration of scattered organizations in food safety.