An ink edge anti-counterfeiting method, characterized by comprising: (a) printing an anti-counterfeiting portion with a randomly generated saw tooth edge on a printing material to be anti-counterfeited, wherein the anti-counterfeiting portion includes a preset code; (b) limiting the sizes of some single saw teeth on the saw tooth edge within certain preset ranges, photographing the saw teeth by a magnifying power which is not smaller than a preset magnifying power, wherein some single saw teeth on the saw tooth edges on a photographed picture are capable of being observed by a user with the naked eye; (c) wherein in preset size ranges of some single saw teeth, the maximum height is 0.3mm, and the minimum height is 0.03mm; (d) acquiring the saw tooth characteristics information on the saw tooth edge, storing an acquired saw tooth characteristics information file in the database of an ink edge anti-counterfeiting network verification system in a way of corresponding to the information of the code; or storing an electronic file with the individual saw tooth edge and mark as the saw tooth characteristics information in the database of the ink edge anti-counterfeiting network verification system; (e) receiving the information of the to-be-verified code and the to-be-detected saw tooth characteristics information on the to-be-verified printing material that is sent from a camera phone of a user, comparing the to-be-detected saw tooth characteristics information with a corresponding saw tooth characteristics information file, verifying the information, and displaying verification conclusion information on the screen of the camera phone;or, logging in to the database website of the ink edge anti-counterfeiting network verification system on a computer which is accessed by the Internet by the user, keying the code, browsing a corresponding saw tooth characteristics picture, magnifying the picture and observing if the to-be-detected saw tooth characteristics are consistent with the saw tooth characteristics in the browsed saw tooth characteristics picture, and then verifying if the printing material is real or not. (a) printing an anti-counterfeiting portion with a randomly generated saw tooth edge on a printing material to be anti-counterfeited, wherein the anti-counterfeiting portion includes a preset code; (b) limiting the sizes of some single saw teeth on the saw tooth edge within certain preset ranges, photographing the saw teeth by a magnifying power which is not smaller than a preset magnifying power, wherein some single saw teeth on the saw tooth edges on a photographed picture are capable of being observed by a user with the naked eye; (c) wherein in preset size ranges of some single saw teeth, the maximum height is 0.3mm, and the minimum height is 0.03mm; (d) acquiring the saw tooth characteristics information on the saw tooth edge, storing an acquired saw tooth characteristics information file in the database of an ink edge anti-counterfeiting network verification system in a way of corresponding to the information of the code; or storing an electronic file with the individual saw tooth edge and mark as the saw tooth characteristics information in the database of the ink edge anti-counterfeiting network verification system; (e) receiving the information of the to-be-verified code and the to-be-detected saw tooth characteristics information on the to-be-verified printing material that is sent from a camera phone of a user, comparing the to-be-detected saw tooth characteristics information with a corresponding saw tooth characteristics information file, verifying the information, and displaying verification conclusion information on the screen of the camera phone;or, logging in to the database website of the ink edge anti-counterfeiting network verification system on a computer which is accessed by the Internet by the user, keying the code, browsing a corresponding saw tooth characteristics picture, magnifying the picture and observing if the to-be-detected saw tooth characteristics are consistent with the saw tooth characteristics in the browsed saw tooth characteristics picture, and then verifying if the printing material is real or not.