COVID‐19 is the most widely affected global epidemic in the past hundred years. During the outbreak period, the governments and media at all levels in China reported the development of the disease in a timely manner, actively promoted the development trend and the surrounding epidemic situation for the public, and made full use of intelligent information technology to help the epidemic screening and tracking. It actively provided information and technical support for medical treatment and epidemic prevention and control, and fundamentally realized the disclosure of epidemic information and smooth transmission of epidemic related information. All these show the role of emergency management system, but there are problems and deficiencies. The research and management of emergency intelligence support system for major public health events has certain practical significance. Taking COVID‐19 as an example, improving the emergency management level of major epidemic events has certain guiding significance for our emergency intelligence research management.