To provide a hair washing composition containing an amino acid-based surfactant, which is excellent in all of the three of viscosity, foaming during washing, and finger's running-through-hair properties during rinsing.SOLUTION: A hair washing composition contains (a) neutral N-acylamino acid salt, (b) acidic N-acylamino acid salt, (c) an ampholytic surfactant, (d) a nonionic surfactant, (e) a cationic polymer, with (a)/(b)=4-10 and {(a)+(b)}/(c)=0.7-1.5.SELECTED DRAWING: None【課題】アミノ酸系界面活性剤を配合した毛髪洗浄用組成物の、粘度、洗浄時の泡立ち、すすぎ時の指通り性の３項目すべてが優れた毛髪洗浄用組成物を得ることを課題とする。【解決手段】（ａ）中性Ｎ－アシルアミノ酸塩（ｂ）酸性Ｎ－アシルアミノ酸塩（ｃ）両性界面活性剤（ｄ）ノニオン性界面活性剤（ｅ）カチオン性ポリマーを含有し（ａ）／（ｂ）＝４～１０｛（ａ）＋（ｂ）｝／（ｃ）＝０．７～１．５である毛髪洗浄用組成物。【選択図】なし
