PROBLEM TO BE SOLVED: To provide an antifungal composition having safety and high effect to suppress the proliferation of fungi.SOLUTION: Disclosed is an antifungal composition comprising a compound (a) selected from specific quaternary ammonium salts and specific amine oxides, and a sequestering agent (b) having a calcium chelating constant of 4-12 at a mass ratio (a)/(b) of 0.01-10.COPYRIGHT: (C)2009,JPO&INPIT【課題】安全性を有し、カビの繁殖を抑制する効果の高い抗カビ剤組成物を提供する。【解決手段】特定の4級アンモニウム塩及び特定のアミンオキシドから選ばれる化合物(a)と、カルシウムキレート化定数が4~12の金属封鎖剤(b)とを、(a)/(b)=0.01~10の質量比で含有する抗カビ剤組成物。【選択図】なし