A spectacular fishpond water disinfection powder relates to the technical field of aquaculture, and is made from the following raw materials: 30-40 parts of chlorine dioxide solution, 15-25 parts of hydrogen peroxide solution, 10-20 parts of didodecyl dimethyl dibenzyltinoammonium chloride, 8-10 parts of polyhydroxy polyene polyamine, 2-4 parts of dodecyl triphenyl phosphorus chloride, 3-5 parts of Salvia miltiorrhiza, 2-4 parts of radix angelicae tuhuo, 3-5 parts of Chinese alpine rush, 2-4 parts of saponin, 3-5 parts of folium artemisiae argyi, 2-4 parts of Angelica dahurica, 2-4 parts of patchouli, 1-3 parts of rhizoma kaempferiae, 1-3 parts of Chinese angelica, 2-4 parts of Lysimachia fortunei, 1-3 parts of hibiscus, 1-3 parts of Ranunculus japonucus and 2-4 parts of Carpesium abrotanoides L.. The invention has the beneficial effects that the disinfection powder prepared by the invention has reasonable formula, simple preparation process, potent bactericidal effect on cultured fish, and small content of toxic substances in water, ensures the normal survival of spectacular fish and does not require frequently replacement of water, and is convenient and simple.