<p>A liquid detergent composition comprising 50 to 80% by mass of an ethylene oxide adduct (A) and an anti-oxidant (B) and having a pH value ranging from 5 to 8 at 25°C, wherein the ethylene oxide adduct (A) is represented by the general formula (I) and has a narrow ratio (which represents a fractional distribution of ethylene oxide adducts having different numbers of moles of ethylene oxide units added) of 30% by mass or higher. R<SUP>1</SUP>CO-(OCH<SUB>2</SUB>CH<SUB>2</SUB>)<SUB>n'</SUB>-OR<SUP>2</SUP> (I) wherein R<SUP>1</SUP> represents a linear or branched alkyl or alkenyl group having 11 to 13 carbon atoms; R<SUP>2</SUP> represents an alkyl group having 1 to 3 carbon atoms; and n' means an average number of moles of ethylene oxide units added and is a numerical number ranging from 10 to 20.</p>
