A leave-on type hair cosmetic composition having the following two layers A and B:Layer A of an oil layer containing the following component (a) in an amount of 0.5-40% by mass in the hair cosmetic composition,(a) a highly polymerized silicone selected from dimethicone and dimethiconol and having a number average degree of polymerization of 1,000-20,000； andLayer B of a water layer containing the following components (b) and (c),(b) a water-soluble polymeric thickening agent, and(c) water.
