Modernization has made human society at risk. China, which is in the period of social transformation, is faced with an endless number of public crisis risks. In the governance of public crisis, the significance of cogovernance at the grassroots level has become increasingly prominent. In the public crisis event of the outbreak of Covid19 epidemic, the multiple governance subjects in City N constituted a governance community under the influence of the emotional field, and the social cogovernance at the grassroots level achieved remarkable effects. This paper introduces the dimension of emotion field into public crisis governance and constructs the theoretical framework of “conscious governance”. The government and society can create a broader emotional field, build a pluralist social governance community, carry out more extensive, more scientific and more efficient “conscious governance”, promote the social governance based on collaboration, participation, common interests and common prosperity, and finally achieve a virtuous cycle of good governance.