This invention above the fixed quantity contains the acyl amino acid type surface active agent, furthermore it is the composition for washing which combines the nonionic characteristic surface active agent and the betta in type amphoteric surface active agent, it possesses moderate viscosity, it offers the composition for washing which is rich in the conditioning effect.本発明は、アシルアミノ酸系界面活性剤を一定量以上含有し、さらにノニオン性界面活性剤とベタイン系両性界面活性剤を配合する洗浄用組成物であって、適度な粘度を有し、コンディショニング効果に富む洗浄用組成物を提供する。