The present invention relates to a superabsorbent polymer composition. The superabsorbent polymer composition of the present invention may exhibit very improved antimicrobial and deodorizing properties without deterioration of the properties of superabsorbent polymer such as centrifugal retention capacity, absorbency under pressure, and transmittance, and thus, can be usefully applied for hygienic goods such as a diaper, and the like. The superabsorbent polymer composition comprises: superabsorbent polymer particles comprising crosslinked polymer of water-soluble ethylenically unsaturated monomers including acid groups, of which at least a part are neutralized; and a particulate antimicrobial agent comprising a quaternary ammonium salt of a silane-based compound.