Provided is a paper manufacturing method capable of improving the total yield and filler yield and reducing the turbidity. A pulp slurry adding step is performed by adding a filler dispersion liquid in which a filler is dispersed in water with a cationic resin in a pulp slurry containing a raw pulp and a pulp slurry after adding the pulp slurry after the step of adding the filler dispersion, and a retention agent adding step of adding a retention agent. Preferably, the cationic resin is at least one selected from a resin containing a quaternary ammonium salt and an epihalohydrin-alkylamine copolymer.