Examples of genetic weapons include influenza viruses with cobra venom genes inserted and E. coli containing anthrax virus. Genetic weapons are characterized by low production cost, high lethality and long action time. The other party is difficult to find, prevent and treat. The use method is simple and there are many casting methods. Only damage organisms with vital characteristics, and do not damage weapons, equipment and facilities. And once used, it will have a strong psychological deterrent effect.