There is no clear research data on the survival time of the new coronavirus. However, through the survival time of influenza virus and SARS virus, it is inferred that the survival time of novel coronavirus in a dry and ventilated environment will not exceed two hours. The novel coronavirus is a single-stranded RNA virus, which does not have its own metabolic replication function, so the virus is easily denatured or inactivated after leaving the host. In the absence of a carrier, the survival time of novel coronaviruses in nature is about half an hour and not more than two hours.