Food and legal system in the United States is composed of three parts，which is the laws enacted by federal Congress, regulations developed by administrative functional departments and the operating mechanism which is under the leadership of President of food safety advisory committee. Its high efficient administrative system, a wide range of public participation, as well as food safety traceability and issues of food recall system, are worth the necessary reference to our legal system of food. It is necessary in the reference basis to take some measures, such as further improving the existing legal system of food, improving public participation system on the basis of information disclosure, and establishing the food safety traceability system and the problem food recall system, so that to promote the development and perfection of the legal system of our country food.