In order to study the applicability of the pulp distributor structure to the paper pulp, the homogenization effect of three different paper pulps in the same distributor structure was analyzed based on Fluent simulation, and the effect of paper pulp physical parameters was analyzed. The results show that the distribution effect of water and 3% NBKP pulp is close, while the error of 5% OCC pulp is obviously increased; the dynamic viscosity is the main factor affecting the distribution effect, with the viscosity increasing , the distribution error decreases first and then increases; the pulp distributor designed based on the empirical formula has limitation in the applicability of paper pulp; the flow error rate can be controlled within 1.5% for low mass fraction paper pulp which dynamic viscosity not exceeds 0.1 Pa•s