Method for preventing tampering of electronic image digital file of label

The invention relates to a method for preventing an electronic image digital file of a label from being tampered. The method comprises the steps that a label manufacturer selects an anti-counterfeit label A1; scanning the anti-counterfeit label A1 to obtain an image digital file B1 of the anti-counterfeit label A1, and uploading the image digital file B1 to a network data center C for storage; attaching the hash value E1 corresponding to the digital file B1 to the anti-counterfeit label A1 to obtain an anti-counterfeit label A2; according to the label user side, the user obtains the anti-counterfeit label A2 and downloads the image digital file B2 from the data center C; a user calculates the hash value E2 of the digital file B2 and compares the hash value E2 with the hash value E1 on the anti-counterfeit label A2, if E1 is equal to E2, the user can confirm that the image digital file B2 is a digital file B1 which is not tampered or forged, and the user can reliably carry out further anti-counterfeit feature