The invention discloses sulfonyl-1,2,3-triazole compounds shown in a formula I as well as pharmaceutically acceptable salt of the compounds. Indoor efficacy of the compounds for wheat rust, influencetests of the wheat germination condition and determination of suspensibility and wetting time of the wettable powder find that the compounds can take effect in a short time to significantly control wheat rust and have no effects on germination and seedling emergence of wheat; the wettable powder has high suspensibility and short wetting time.