Provided is an aqueous liquid detergent composition containing a long-chain fatty acid glycol ester represented by the following formula (1): R.sup.1COO(CH.sub.2CH.sub.2O).sub.mA (1) wherein, A is H or COR.sup.2, R.sup.1 and R.sup.2 represents a C.sub.11-21 alkyl or alkenyl group, and m stands for a number of from 1 to 3, and a surfactant, wherein the fatty acid constituent of the long-chain fatty acid glycol ester contains 60 wt. % or greater of fatty acids having 18 or more carbon atoms, 40 wt. % or less of a fatty acid having 16 carbon atoms, and 5 wt. % or less of fatty acids having less than 16 carbon atoms; and the composition has a pH of from 1 to 5 at 25.degree. C. when diluted to 20 times the weight with water.The detergent composition has benefits such as an elegant and expensive-looking pearl luster, is excellent in stability of a pearling agent, particularly long storage stability at high temperatures, and has good detergency and foaming property.