Provided is a liquid antiperspirant deodorant composition comprising (A) an antiperspirant component, (B-1) a compound selected from benzalkonium chloride, benzethonium chloride, cetylpyridinium chloride, dequalinium chloride and cetyltrimethylammonium bromide, (B-2) a (C8-22)-alkyl trialkyl ammonium salt (excluding the component (B-1)) and (C) ethanol, wherein the ratio of the content of the component (B-1) to the content of the component (B-2), which is represented by the formula (B-1)/(B-2), is 0.03 to 35 by mass. The liquid antiperspirant deodorant composition has a high and long-lasting antibacterial effect, a long-lasting antiperspirant effect and a long-lasting deodorizing effect and is mild to sensitive skin.