The present invention relates to a microbicidal composition comprising phytic acid and electrolytes. The purpose of the present invention is to provide a microbicidal composition which prevents excessive use of phytic acid or electrolytes, maximizes sterilizing power of each material, and effectively sterilizes and controls virus such as acid-resistant Enterohemorrhagic E. coli.COPYRIGHT KIPO 2017본 발명은, 피틴산 및 전해질을 포함하는, 살균 조성물에 대한 것이다.