Hypochlorite disinfectant solution is useful for coronavirus. Hypochlorite solution is colorless, has a pungent odor, is extremely unstable, has a strong oxidizing and bleaching effect, and can kill bacteria in water. While the salts of hypochlorous acid can be used as bleach and disinfectant, the more commonly used sodium hypochlorite disinfectant solution commonly known as 84 disinfectant solution is very suitable for the preventive disinfection of coronavirus. Hypochlorite disinfectant solution can kill viruses, bacteria, fungi and other microorganisms, and has a better inactivation effect on coronavirus, with the advantages of wide sterilization spectrum, rapid action, reliable sterilization effect, low toxicity, easy to use, low price, etc. However, hypochlorite disinfectant solution is unstable, irritating and corrosive, irritating to the skin, bleaching to organic matter, easily affected by organic matter and PH value, etc., and generally needs to be diluted before it can be used.