To cope with the increasingly complexity of cyber threat，minimize the losses and harms of cyber incident and protect interests of the country and the people，in 2016 the United States has been responding vigorously by introducing a series of strategic guidelines，plans of action and coordination procedures concerning the issue，thus raising the level of interest and awareness of cyber incident response from an angle of the nation’s top-level design. By mobilizing the whole-of-government and whole-of-nation forces to deal with significant cyber incident，continuously refining the strategic framework for organizational roles，responsibilities，adopting a common schema for describing the severity of cyber incidents and setting specific requirements on how to prepare for，respond to，and begin to coordinate recovery from a cyber incident，the US government aims to promote cyber incident coordination to a new level.