PROBLEM TO BE SOLVED: To provide an electronic label authentication method for implementing personal identifications of terminal users at a distributor side and a consumer side, an electronic label authentication system, an electronic label authentication device and an electronic label.SOLUTION: The electronic label authentication method includes generating a two-dimensional code of a product at a first terminal, dispatching the two-dimensional code to a second terminal, and integrating the two-dimensional code in the electronic label of the product. The second terminal reads the two-dimensional code in the electronic label, and authenticates the electronic label using the two-dimensional code that is dispatched from the first terminal. If the electronic label passes the authentication, the second terminal dispatches an active comment to the electronic label and the electronic label changes a color in accordance with the active comment. Biological information of users of the first terminal and the second terminal are involved in the generation of the two-dimensional code.EFFECT: The personal identifications of the terminal users can be implemented and a more intuitive authentication result can be indicated.SELECTED DRAWING: Figure 1
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