Laser anti-counterfeiting door line is a kind of anti-counterfeiting sealing door line with woven bag, including cotton, twisted yarn and laser security wire. The anti-counterfeiting seal line has graphics and features printed by the manufacturer. It is a comprehensive anti-counterfeit product that can be observed in natural light under the naked eye colorful rainbow luster, easy for consumers to identify true and false. The application of anti-counterfeiting sealing line can replace the existing sealing line, the use of manufacturers without additional packaging process, and the anti-counterfeiting sealing line with detectability, can be observed under the detector to enlarge the characteristics of the manufacturers mark; under the long wave detector can be Observed red, yellow two different colors. This type of laser anti-counterfeiting seal line fundamentally solves the anti-counterfeiting problem of powder, such as cement, fertilizer, flour, and feed.