Problem to be solved: to provide a hair detergent composition that is excellent in hue stability, fine in foam quality at the time of shampooing, produces coacervates at low concentration, and is excellent in finger quality at the time of rinsing and continues to be good until after drying.Component (a): a hair detergent composition characterized by comprising an N-acyl amino acid represented by formula (1) and a neutralization salt of alkanolamine represented by formula (2) from 5 to 25 weight%, component (b): 0.05 to 2 wt% of the cationic polymer.(R1 co represents fatty acyl groups of 8 to 22 carbon atoms, n represents an integer of 1 to 2)(R2 represents the methyl group, the hydroxyl alkyl group of 2 to 3 carbon atoms may be identical or different between R3 and R4)No selection【課題】色相安定性に優れ、洗髪時の泡質が細かく、低濃度でもコアセルベートを生成し、すすぎ時の毛髪の指通り性が良く、乾燥後まで指通りの良さが継続する毛髪洗浄剤組成物の提供。【解決手段】成分（ａ）：式（１）で示されるＮ－アシルアミノ酸と式（２）で示されるアルカノールアミンとの中和塩を５～２５重量％、成分（ｂ）：カチオン性ポリマーを０．０５～２重量％を含むことを特徴とする毛髪洗浄剤組成物。（Ｒ１ＣＯは炭素数８～２２の脂肪酸アシル基を示し、ｎは１～２の整数を示す。）（Ｒ２はメチル基、Ｒ３とＲ４は同一でも異なっていてもよい炭素数２～３のヒドロキシアルキル基を表す。）【選択図】なし
