The invention discloses an anti-counterfeit coating white cardboard containing dyed wood pulp fibers. The cardboard comprises a surface layer, a core layer and a bottom layer which are overlapped sequentially, wherein dyed wood pulp fibers are contained in the core layer and/or bottom layer in a content of 0.7-0.9wt%. The invention further discloses a process for producing the dyed wood pulp fibers and the anti-counterfeit coating white cardboard containing the dyed wood pulp fibers. According to the process, wood pulp fibers are dyed with dye, and the dyed wood pulp fibers are added in the core layer and/or bottom layer of the coating white cardboard to obtain the anti-counterfeit coating white cardboard, and the dyed fibers are easily identified. Compared with common dyed fibers, the dyed wood pulp fibers are simple in preparation flow, low in price and good in environment-friendly performance, have the characteristics of original fibers, and are soft and plastic. The prepared coating white cardboard achieves a higher level in the fields of paper strength, printability and flexible performance in comparison with existing high-grade coating white cardboard.