The invention discloses an antibacterial and sterilization disinfectant for killing avian influenza viruses. The disinfectant consists of a silver-loaded nanometer titanium dioxide AT antibacterial agent for a livestock pen, a zinc oxide whicker composite high-efficiency broad-spectrum antibacterial agent, an avian influenza virus prevention and control phosphate composite silver system antibacterial agent, a TiO2 photocatalytic composite synergistic antibacterial agent, an Al2O3 far infrared radiation broad-spectrum antibacterial agent, a nanometer silver system zeolite antibacterial agent, chitin natural specific deodorization incense and an antibacterial and sterilization disinfectant. The antibacterial and sterilization disinfectant is used for killing high-pathogenicity viruses, bacteria, spores, fungi, mildews and the like including flying bird avian influenza viruses in livestock activity places such as cattle, sheep, pig, poultry and animal houses, pens and sheds as well as the sterilization and disinfection of a house of a meat processing enterprise, a slaughter house, equipment transportation, a hatching box, a veterinary station, a multiplying farm, even a hotel, a restaurant, a guest house, a bathroom, a movie theater and various public places, is high in sterilization rate and safe and harmless to humans and livestock, and has good effects, and side effects on humans and livestock are avoided.