To provide a resin composition for dispersing pigment, having good color-toning property and color-mixing property of organic coatings even on a condition of using neither pigment-dispersing agent nor color-segregation inhibitor.

The resin composition for dispersing pigment comprises a resin for organic coatings (A), a silicon compound represented by general formula (I) (R1O)4a-Si-R2a(I) and/or a partial hydrolyzate condensate thereof (B), an organic solvent (C) and a pigment (D), wherein carbon number of at least one alkoxy of the silicon compound and/or the partial hydrolyzate condensate (B) is ≥2, and the average condensation degree of the silicon compound and/or the partial hydrolyzate condensate is >6. Wherein, in formula (I), R1is a univalent hydrocarbon group selected from a 1-10C alkyl, aryl and aralkyl, and may be the same or different when existing plurally; R2is a univalent hydrocarbon group selected from a 1-10C alkyl, aryl and aralkyl; and (a) denotes 0 or 1.

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