Disclosed are an ink edge anti-counterfeiting method and an ink edge anti-counterfeiting network identification system. Tiny sawteeth (6) are randomly produced on ink edges of a product code (4) and/or an image-text and the sawteeth (6) are zoomed in on and photographed, feature information about the sawteeth (6) on the ink edges acquired through photographing is stored in an ink edge anti-counterfeiting network identification system database as anti-counterfeiting feature information, and sawtooth feature information to be checked is compared with the sawtooth feature information in the database to identify the authenticity. The method and system are simple and easy to implement, do not need to increase equipment investment, can realize an effective anti-counterfeiting function, and can avoid the problem in the existing digital anti-counterfeiting techniques, such as a telegram code, that the anti-counterfeiting feature information can be easily copied and stolen by internal staff.