As the first line of defense public health emergencies，crisis warning management is a key period to discover, identify and solve crises and avoid further harming to people security and property. Based on the current situation of crisis warning management of public health emergencies, we summarized the problems existing in the crisis warning management of public health emergencies in China during the COVID?19 epidemic response period, such as the lack of joint mechanism among departments, the imperfect public opinion monitoring system, the lack of professional emergency personnel, the imperfect monitoring and warning system. In order to provide a scientific basis for the response to public health emergencies, the government should improve the coordination mechanism of crisis warning management, perfect the public opinion monitoring system of crisis warning management, strengthen the construction of emergency professionals, and improve the construction of crisis warning management system, optimize and improve the crisis warning management system of public health emergencies.