A resist composition comprising: (A) a resin comprising a structural unit having an acid-labile group in its side chain and a structural unit represented by the formula (I): wherein R1 represents a hydrogen atom or a methyl group, Z1 represents a single bond or —(CH2)k—CO—O—, k represents an integer of 1 to 4, and ring X represents an unsubstituted or substituted C3-C30 cyclic hydrocarbon group having —COO—, (B) a resin comprising a structural unit having an acid-labile group in its side chain and a structural unit represented by the formula (III): wherein R6 represents a hydrogen atom or a methyl group, R7 is independently in each occurrence a linear or branched chain C1-C6 alkyl group and n represents an integer of 0 to 4, and (C) an acid generator.