A higher secondary alcohol alkoxylate compound composition represented by the general formula (1):
[wherein R 1 and R 2 represent an alkyl group provided that the total number of carbon atoms of R 1 and R 2 is in the range of 7 to 29 and the number of carbon atom of R 2 is not less than that of R 1 (the number of carbon atom of R 1 ≤ the number of carbon atom of R 2 ), A represents a lower alkylene group, n represents a numeral in the range of 1 to 50 on the average; providing that when n is not less than 2, the number of species of oxyalkylene group represented by AO may be either one or two or more, and that when the oxyalkyl groups have two or more species, all the oxyalkylene groups are present in the average of n, and B represents a hydrogen atom or SO 3 M (wherein M represents an alkali metal atom, an alkaline earth metal atom, an ammonium group or a substituted ammonium group)], wherein the composition comprises 30 to 90 mol% of the higher secondary alcohol alkoxylate compound (X) having a methyl group for R 1 and 70 to 10 mol% of the higher secondary alcohol alkoxylate compound (Y) having an alkyl group of 2 or more carbon atoms for R 1 , a method for the production thereof, and a detergent and an emulsifier using the composition.