The invention relates to a combined dual-certification method and system for circulation retracing and authenticity certification of commodity, comprising following steps that: 1), a production enterprise registers and applies two-dimensional supervision codes on a central platform; 2), the central platform allocates code segments of the two-dimensional supervision codes to the applying enterprise, the production enterprise manufactures the supervision codes; 3), the production enterprise adheres the supervision codes on the manufactured products, uploads to the central platform and activates the supervision codes; 4), the production enterprise sales the products with the supervision codes to wholesale and retail enterprises; the wholesale and retail enterprises verify the basic information and anti-fake information of the commodity through a special reading device, and loads stock-in and stock-out first class retracing information to the central platform; 5), a consumer scans the supervision codes on the product through an intelligent mobile device and carries out commodity payment. The invention is advantaged by that anti-fake search and commodity payment are combined, when the consumer scans the supervision codes and pays, payment is carried out successfully only when the product is determined to be not a fake.