The invention discloses a paper and paperboard dyeing method which adopts the technical scheme that the manufacturing and dyeing of paper and a paperboard is finished in a papermaking machine at same time. A universal dyeing device installed in all proper positions of a pressing dehydration part and a drying part of paper molding and the part between the pressing dehydration part and the drying part in the papermaking machine can dye a single surface and double surfaces of paper, thereby overcoming the problems of large pollution, high cost, and the like caused by a method for making dyed paper after dyeing paper pulp, which is adopted in the prior paper making and dyeing.