The present invention provides a surfactant composition that is excellent in storage stability while maintaining high viscosity thereof even when the concentration of a surfactant used therein is low, and a process for producing the surfactant composition. The present invention relates to [1] a surfactant composition including (A): a polyol having from 2 to 3 carbon atoms (B): a specific polyoxyalkylene alkyl or alkenyl ether sulfate or a salt thereof (C): at least one compound selected from the group consisting of an alkali metal salt other than the aforementioned component (B) and the like and (D): water, in which a content of the component (A) in the composition is from 25 to 98% by mass, a content of the component (B) in the composition is from 0.05 to 10% by mass in terms of the sulfate, a total content of alkali metals (X) derived from the polyoxyalkylene alkyl or alkenyl ether sulfate salt as the component (B) and derived from the at least one compound selected from the group consisting of the alkali metal salt and the like as the component (C), in the composition is not more than 2.5% by mass in terms of the metal elements, and a molar ratio of the alkali metals (X) to the component (B) is not less than 1.5, and [2] a process for producing the aforementioned composition.
