A hair cosmetic composition comprising the following components (A) and (B) and having a pH of 6 or less: (A) an oxyalkylene polymer represented by the following general formula (a1): -(AO)n- (a1) wherein A represents an alkylene group having 2 to 6 carbon atoms and n represents a number from 50 to 30,000, provided that n number of AOs consist of at least two alkyleneoxy groups and are arranged through either random polymerization or block polymerization and (B) a polymer containing a component unit represented by the following general formula (b1) and a component unit represented by the following general formula (b2) in a mass ratio (b1)/(b2) of 50/50 to 100/0: -(CH2CR1COOH)- (b1)-(CH2CR2COOR3)- (b2) wherein R1 and R2 represent H or CH3 and R3 represents a C2-20 hydrocarbon group.本發明之毛髮化妝料含有以下成分(A)及(B),且pH值為6以下。(A)式(a1)所表示之氧伸烷基聚合物-(AO)n- (a1)[A表示碳數2~6之伸烷基,n表示50~30,000之數;n個AO包含至少2種伸烷氧基,其排列可為無規聚合、嵌段聚合之任一者](B)式(b1)所表示之結構單元與式(b2)所表示之結構單元之質量比(b1)/(b2)為50/50~100/0的聚合物-(CH2CR1COOH)- (b1)-(CH2CR2COOR3)- (b2)[R1及R2表示H或CH3,R3表示C2-20之烴基]
