The invention discloses a commodity anti-counterfeiting traceability method, which comprises the following steps: S1, obtaining the information to obtain the identification information of the terminal, confirming whether the terminal has the operation authority, if so, executing the step S2; S2, obtaining the identification information of the terminal, confirming whether the terminal has the operation authority or not. S2, obtaining commodity information and commodity circulation information written in the information obtaining terminal, associating the commodity information and commodity circulation information with the commodity traceability code, and uploading the commodity information and commodity circulation information to the block chain; S3, receiving an access instruction issued by the access terminal, wherein the access instruction includes an identification traceability code, obtaining commodity data of a corresponding commodity on a block chain according to the access instruction, and pushing the commodity data to the access terminal, the commodity data including commodity information and/or commodity circulation information. The invention is based on the internet of things technology to directly dock the service data, realizes decentralization by using the block chain technology, effectively prevents human intervention and counterfeiting, ensures the commercial secrets of each enterprise, and makes the commodity anti-counterfeiting traceability system stable and reliable.