Disclosed is a pyrazole amide compound as represented by general formula I, wherein, R1 is selected from hydrogen, C1-C4 alkyl, C2-C6 alkenyl and C2-C6 alkyl; and R2 and R3 can be the same or different, and are respectively and independently selected from the C1-C6 alkyl. The general formula I compound has an excellent bactericidal activity, and can be used to prevent and control fungal diseases.