Sterilizing composition containing penflufen and tetraconazole

The invention discloses a sterilizing composition containing penflufen and tetraconazole and an application thereof. The sterilizing composition comprises active ingredients, namely penflufen and tetraconazole, wherein the weight ratio of penflufen to tetraconazole is 1: 20 to 20: 1. The sterilizing composition has synergistic interaction in the proportion range and can effectively prevent rice sheath blight disease.