Abstract: The compound F1050 in agrochemical invention was found by Zhejiang Branch of National Pesticide R&D South Center and Shanghai Institute of Organic Chemistry Academia Sinica. The bioassay results showed that it was a chemical inhibitor which both killed pest and mite, and inhibited the growth of fungi. It was proved to be more sensitive to the mite than others and to be lethal active against the growth at various mite stages. Additionally, this compound strongly effects on contacting poison in short time.