The invention provides a combined anti-counterfeit
label which comprises a two-dimensional code, a blank area and a
dot matrix graph, wherein the two-dimensional code, the blank area and the
dot matrix graph are arranged on the same plane. A method for generating the combined anti-counterfeit
label comprises the steps of obtaining a two-dimensional code pattern converted from
plaintext information and
ciphertext information via a two-dimensional code generator, generating a
dot matrix graph pattern with the area not greater than that of the blank area via a dot matrix
graph generator, and superimposing the dot matrix graph pattern on the blank area in the two-dimensional code pattern, wherein the dot matrix graph is to be implanted into the blank area of the two-dimensional code pattern. A device for generating the combined anti-counterfeit
label comprises the two-dimensional code generator, a dot matrix graph ID (identification)
database, the dot matrix graph pattern generator and a merging device. The label is formed by combining the two-dimensional code and the dot matrix graph; even if the label is imitated by a counterfeiter, information bound with the anti-counterfeit label cannot be acquired, and the anti-counterfeit label has high-grade anti-counterfeiting performance.