The COVID-19 pandemic is the defining global health crisis and the greatest challenge that we are currently facing. The key to the management of infectious diseases worldwide is to abide by international regulations and conduct international cooperation in pursuit of common interests and values. WHO is the specialized international organization, under the United Nations system, to manage and control the spread of diseases. This study Summecrizes the WHO's response mechanisms for infectious diseases, response measures and the direction of efforts to combat COVID-19, with a view to provide advices for the control of COVID-19 pandemic.