Provided is a composition which is liquid and has a high bactericidal or bacteriostatic effect but has little bitterness or sourness. At least one selected from caprylic acid monoglyceride and capric acid monoglyceride, and ultraphosphate are contained, and the total concentration of the caprylic acid monoglyceride and capric acid monoglyceride is 0.05% by mass or more, and pH 3.5. The following liquid composition for sterilization or bacteriostatic.液状を呈し、かつ高い殺菌又は静菌効果を有しながらも苦味や酸味が少ない組成物の提供。カプリル酸モノグリセリド及びカプリン酸モノグリセリドから選択される少なくとも１種と、ウルトラリン酸塩とを含有し、該カプリル酸モノグリセリド及びカプリン酸モノグリセリドの合計濃度が０．０５質量％以上であり、かつｐＨ３．５以下である、殺菌又は静菌用液状組成物。
