The present invention relates to an oil-in-water cleansing cosmetic composition, containing: (A) carboxylic acid-modified silicone that is liquid at 50°C; (B) 3 to 80 mass% of an oil agent relative to the total mass of the cosmetic composition; (C) water; and (D) a basic compound; where an amount of an ionic surfactant other than the carboxylic acid-modified silicone (A) that is liquid at 50°C is 10 mass% or less relative to the total mass of the cosmetic composition. The cleansing cosmetic composition according to the present invention quickly blends with makeup grime, has a high makeup removing effect, and has excellent stability.