An oxidative hair dye composition contains a first agent that includes an alkaline agent and is a cream formulation and a second agent that includes an oxidant and is liquid. The oxidative hair dye composition at the time of use has a viscosity at 25 DEG C of 3,000 to 10,000 mPa·s. The oxidative hair dye composition further includes (A) a salt of an oxidative dye, (B) a cationic surfactant in a content of 0.15% by mass or more, (C) a nonionic surfactant having an HLB value of 17 to 20, and (D) a nonionic surfactant having an HLB value of 11 or less.本發明提供一種氧化染髮劑組成物,其係由多種試劑構成,使用作為酸加成鹽的氧化染料的氧化染髮劑組成物,能夠在賦予所期望的黏度的同時提高混合性。本發明的氧化染髮劑組成物含有乳膏狀劑型的第一劑和液狀的第二劑,該第一劑含有鹼性試劑,該第二劑含有氧化劑,該氧化染髮劑組成物在使用時在25℃的黏度為3000~10000mPa・s,其中,該氧化染髮劑組成物含有(A)氧化染料的鹽、(B)0.15質量%以上的陽離子性表面活性劑、(C)HLB為17~20的非離子性表面活性劑、(D)HLB為11以下的非離子性表面活性劑。(B)成分可以包含碳原子數為20以上的烷基。