PROBLEM TO BE SOLVED: To provide a bactericide detergent composition for sterilization of hard surface manifesting a high bactericidal effect to spore-forming bacteria and mold.SOLUTION: The invention relates to the bactericide composition for sterilization of hard surface comprising water and an organic peracid obtained by reacting (A) an ester of a polyhydric alcohol and an organic acid with (B1) hydrogen peroxide in water in a specific molar ratio at 8-12 of pH, wherein the pH of the composition is 1-7 at 25°C.COPYRIGHT: (C)2006,JPO&NCIPI【課題】 芽胞形成菌やカビに対して高い殺菌効果を示す硬質表面用殺菌洗浄剤組成物を提供する。【解決手段】 (A)多価アルコールと有機酸とのエステルと(B1)過酸化水素とを、水中で特定のモル比で、且つpH8~12で反応させて得られた有機過酸、並びに水を含有し、25℃におけるpHが1以上7未満である硬質表面用殺菌洗浄剤組成物。【選択図】 なし