The current laws，regulations and standards of food traceability and the applications in EU，US，Japan，CAC and ISO were studied in this article，and the issues existing in the food traceability system in China were also analyzed. The results show that the food traceability system，as an information record system used to enhance transmission of food safety information，control the risk of food-borne diseases and protect interests of consumers，is an effective tool for food safety control. The developed countries and regions have established the regulation system of food traceability system，including the mandatory traceability by government and independent implementation of traceability system by enterprises. Food traceability system has been applied to foods with long production cycle and complicated process，which improves the food safety supervision effectively. The complete regulation system of the food traceability has not been established in China. In order to ensure the food safety and meet international standards of food safety management，China must accelerate construction of the legal system of food traceability，as standard development of standards related to food traceability and implementation of relevant projects.