Provided is a water-repelling, oil-repelling agent composition that has good water repellency, oil repellency, and laundering resistance; controls penetration of a coating liquid for forming a moisture-permeable waterproof film, and the like; is capable of forming an article having excellent aesthetic appeal; and poses a low environmental burden. Also provided are a method for producing the same and an article the surface of which is treated by the water-repelling, oil-repelling agent composition. The water-repelling, oil-repelling agent composition contains a polymer having structural units based on the following monomer (a) and structural units based on the following monomer (b) and an aqueous medium containing water and the following amide solvent (I). Monomer (a) is a compound represented by (Z-Y)nX wherein Z is a C1-6 polyfluoroalkyl group, and the like; Y is a fluorine atom-free divalent organic group, and the like; n is 1 or 2; and X is a polymerizable unsaturated group. Monomer (b) is a vinyl chloride. Amide solvent (I) is a compound represented by R1O(CH2)r(CHR4)sC(O)NR2R3 where r is an integer of 0 to 3; s is 0 or 1; R1 is a C1-3 alkyl group; R2 and R3 are methyl groups, and the like; and R4 is a hydrogen atom, and the like.