Recently, coronavirus infection disease outbreak has highlighted the urgency of building a "whistleblower There are many benefits for building this system, for example improving the legal system of health prevention and control, helping to prevent and control infectious diseases in the early stage, and protecting the rights of "whistleblowers". In order to construct the system, we should consider the moral hazard, rights and obligations of "whistleblowers" and the connection and coordination of the existing legal system, so as to put forward specific system rules.