PROBLEM TO BE SOLVED: To provide a cleaning agent composition exhibiting excellent foam-increasing properties in use, providing high cleaning feeling, being easily washed out without greasy feeling, and exhibiting sufficient mild properties even after being repeatedly cleaned.SOLUTION: The cleaning agent composition contains (A) 3-40 mass% anion surfactant, (B) 0.02-5 mass% glyceryl ether having a 4-12C alkyl group or alkenyl group, (C) 0.02-10 mass% cationized hydroxypropyl cellulose represented by formula (1), and (D) water. (In the formula, R1, R2 and R3 each independently represent a substituent having a cationized ethyleneoxy group and a propyleneoxy group and n represents a number between 20 and 5,000 which is a number representing the average polymerization degree of anhydroglucose. The substitution degree of the cationized ethyleneoxy group is between 0.01 and 3 and the substitution degree of the propyleneoxy group is between 0.01 and 5).COPYRIGHT: (C)2013,JPO&INPIT【課題】使用中の泡の増泡性に優れ、高い洗浄実感が得られ、ぬるつかずにさっと洗い流せ、繰り返し行われる洗浄にも十分なマイルド性を有する洗浄剤組成物の提供。【解決手段】(A)アニオン界面活性剤3~40質量%、(B)炭素数4~12のアルキル基又はアルケニル基を有するグリセリルエーテル0.02~5質量%、(C)下記一般式(1)で示されるカチオン化ヒドロキシプロピルセルロース0.02~10質量%、(式中、R1、R2及びR3は、それぞれ独立にカチオン化エチレンオキシ基とプロピレンオキシ基を有する置換基を示し、nはアンヒドログルコースの平均重合度を示す20~5000の数である。カチオン化エチレンオキシ基の置換度は0.01~3であり、プロピレンオキシ基の置換度は0.01~5である。)(D)水を含有する洗浄剤組成物。【選択図】なし