Anti-coccidial drug. This product acts on the asexual reproduction stage of coccidia, and has obvious inhibitory effects on sporozoites, first-generation schizonts and second-generation schizonts. This product can inhibit early pathological changes and effectively protect the intestines of chickens from damage, so that the coccidia can not further develop and form large and small gametes and cannot carry out sexual reproduction, thereby inhibiting the formation of oocysts. It has good effect to the control of the coccidial species Eimeria tenella, E. necatrix, E. acervulina, E. brunetti, E. maxima in chickens. It is hardly absorbed by chicken oral administration, and is excreted in feces.