The present invention provides a hair cosmetic composition contains (A) a di-long-chain cationic surfactant represented by formula (1) (B) an ethylene oxide adduct of 1,2-alkanediol represented by formula (2), and/or an N-acyl-N-methylmonoethanolamide represented by formula (3) and (C) water, wherein the number (α1) of the carbon atoms that form RaCO of the di-long-chain cationic surfactant represented by formula (1) and the number (α2) of the carbon atoms that form each of RbCHCH2 of the ethylene oxide adduct of 1,2-alkanediol represented by formula (2) and RcCO of the N-acyl-N-methylmonoethanolamide represented by formula (3) satisfy the relationship: (α2−2)≦α1≦(α2+2) (chemical formulas not shown). The hair cosmetic composition of the present invention has remarkably high safety and excellent stability. Also, even when the composition has a low base material content, a lamellar liquid crystal structure can be formed. Quite surprisingly, the hair cosmetic composition can provide hair with conditioning effects and shows such excellent performance as to cause no problem even though the rinsing step is omitted.
