Anti-copying file

The invention discloses an anti-coping file, which comprises a file substrate. An anti-counterfeit identification zone is arranged on the file substrate; an anti-coping printed layer is printed in the anti-counterfeit identification zone, and comprises a first chroma printing layer, a second chroma printing layer and a third chroma printing layer formed through printing by adopting different chromas; the first chroma printing layer is prepared from chroma with RGB (Red Green Blue) value being (68, 68, 68); the second chroma printing layer is prepared from chroma with RGB value being (0, 0, 0); and the third chroma printing layer is prepared from chroma with RGB value being (240, 240, 240). The anti-coping file provided by the invention is easy to identify, high in identification degree, reliable in anti-counterfeiting, simple and fast to manufacture, and low in cost.