PROBLEM TO BE SOLVED: To provide a liquid composition for oral cavity in which ethanol is not blended, wherein the composition inhibits adhesion of dental plaque to a tooth surface and sterilizes Streptococcus mutans in the dental plaque to effectively inhibit dental plaque formation, is excellent in preservative force and stable external appearance (no sediment) of a preparation, has low stimulating properties and no bitter taste, and gives good use feeling.SOLUTION: The liquid composition for oral cavity which does not substantially contain ethanol includes (A) 0.01-0.1 mass% of a cationic disinfectant, (B) 0.005-0.1 mass% of cationized cellulose, (C) propylene glycol, (D) polyoxyethylene hydrogenated castor oil in which the average addition molar number of ethylene oxide is 60-100 mol, and (E) a paraoxybenzoate.COPYRIGHT: (C)2011,JPO&INPIT【課題】エタノールを配合しない液体口腔用組成物において、歯面への歯垢の付着を抑制すると共に歯垢中のミュータンス菌を殺菌して、歯垢形成を有効に抑制し、かつ製剤の防腐力及び外観安定性(オリの無さ)に優れ、低刺激で苦味がなく使用感も良好な液体口腔用組成物を提供する。【解決手段】エタノールを実質的に含有しない液体口腔用組成物に、(A)カチオン性殺菌剤を0.01~0.1質量%と(B)カチオン化セルロースを0.005~0.1質量%とを配合し、かつ(C)プロピレングリコール、(D)エチレンオキサイドの平均付加モル数が60~100モルのポリオキシエチレン硬化ひまし油、及び(E)パラオキシ安息香酸エステルを配合したことを特徴とする液体口腔用組成物。【選択図】なし