A hair treatment composition comprising components (A) to (D), wherein the mass ratio (A)/(B) between the content of the component (A) and the content of the component (B) is from 0.05 to 2.0, and the pH value of the hair treatment composition is from 2.5 to 5.0; (A): polyglycerin, in which with regard to the ratio among a total content (p) of triglycerin and tetraglycerin, a content (q) of diglycerin, and a total content (r) of pentaglycerin and higher order oligomers in the entire polyglycerin, q/p is less than 0.5 and r/p is less than 0.5; (B): alkyl glyceryl ester or alkyl glyceryl ether having an HLB of 2 to 7; (C): aromatic alcohol; and (D): cationic surfactant.