This shampoo composition includes 3 to 30 mass % of a taurine salt component (a) of an acylmethyl-β-alanine represented by formula (1)3 to 30 mass % of an amphoteric surfactant component (b) represented by formula (2) or formula (3)0.03 to 3 mass % of a cationized polymer component (c) and37 to 94 mass % of a water component (d),the mass ratio (a)/(b) of the component (a) and the component (b) is 0.2 to 3.(R1CO represents a C8-22 acyl group. M represents an alkali metal, alkanolamine or basic amino acid.)(R2 represents a C8-22 alkyl group or alkenyl group.)(R3CO represents a C8-22 acyl group, and n represents 1 to 3.)