To provide a method for producing a coated paper for offset rotary printing, excellent in blister resistance suitability by using a base paper made by a paper machine equipped with a twin wire of gap former specification.

This method comprises coating a base paper made by a paper machine equipped with a twin wire with an aqueous coating composition consisting essentially of a pigment and an adhesive, drying and finishing. A pulp treated with an enzyme having cellulose decomposing activity after digestion amounts to 50-100wt.% of the whole pulp constituting the base paper and the difference of the enzyme-treated pulp in Canadian standard freeness (CSF) measured in conformity with JIS P-8,121 between before and after the treatment with the enzyme is 20-120mL.