A cleaning agent composition containing the following components (A), (B), (C) and (D): 1 to 20 weight % of a polyoxyethylene alkyl ether sulfate (A); 0.02 to 5 weight % of a cation group-containing polymer (B) having a cationic charge density between 4.5 and 7 meq/g; 0.02 to 10 weight % of a cationized hydroxypropyl cellulose (C) represented by general formula (1); and water (D). (In the formula, R1, R2 and R3 each independently represent a substituent having a cationized ethylene oxy group and a propylene oxy group, and n represents a number between 20 and 5000 which is a number representing the average polymerization degree of anhydroglucose. The substitution degree of the cationized ethylene oxy group is between 0.01 and 3 and the substitution degree of the propylene oxy group is between 0.01 and 5.)本發明係關於一種清潔劑組合物,其含有如下成分(A)、(B)、(C)及(D):(A)聚氧乙烯烷基醚硫酸鹽1~20重量%、(B)陽離子電荷密度為4.5~7 meq/g之含陽離子基之聚合物0.02~5重量%、(C)下述通式(1)所表示之陽離子化羥丙基纖維素0.02~10重量%(式中,R1、R2及R3各自獨立地表示具有陽離子化伸乙基氧基與伸丙基氧基之取代基,n為表示脫水葡萄糖之平均聚合度之20~5000之數;陽離子化伸乙基氧基之取代度為0.01~3,伸丙基氧基之取代度為0.01~5)、(D)水。