The invention relates to a printed paper product recycling method, which uses pulping equipment. The pulping equipment comprises a shell, a feeding pipe, a discharging pipe, a water inlet pipe, a crushing device and a pulping device. The specific method for recycling printed paper products by adopting the pulping equipment comprises the steps of classifying and recycling, crushing and pulping, deinking and bleaching, compression molding and paperboard cutting. The crushing device comprises a driving motor, a driving gear, a driven gear ring, a connecting pipe, a driving rotating shaft, a spraying mechanism, a crushing cutter, a first sieve plate, a transmission mechanism, a baffle ring, a supporting plate, a partition plate and a water spraying pipe. Through the cooperation of the crushingdevice and the pulping device, the function of making waste paper printed matter into paper pulp is achieved, paper products can be wetted in advance before crushing so as to reduce the crushing difficulty, the homogenizing mechanism can continuously stir the pulp in the pulping process, and the paper pulp at all positions can make full contact with crushing blades.