The present invention provides a cleaning agent composition which contains an N-acyl acidic amino acid having a specific structure and/or a salt thereof (component (A)) and a fatty acid t-butyl ester having a specific structure (component (B)).本發明提供一種清潔劑組合物,該清潔劑組合物含有成分(A):具有特定之結構之N-醯基酸性胺基酸及/或其鹽、以及成分(B):具有特定之結構之脂肪酸第三丁酯。