The meat dishes retrospectively to circulation of agricultural products that system use of the Internet,, and so on, to to achieve that the in order to retrospective and management platform at all levels as the center, and the in order to the wholesale and retail market circulation node for the the meat dishes of the terminal Circulation traceability system. Take agricultural products as an as an example,. From the the agricultural products growth, and fertilization, conservation, pesticides detection, logistics, distribute, sales, aspects of began to each batches of of products are be with a place of origin, sales, inspection, operation of the main, and and other information to to enter the the wholesale, retail, consumer aspects of, on the the consumers present their the and special electronic scale Print of small votes retrospective yards, through the a retrospective query machine, the the, Internet, mobile phone of the retrospective service Hotline query the purchased product Information