As the modernity gradually becomes obvious,the urban public crisis is increasingly complex and frequent.At present,public health events have become an important form of urban public crisis,with obvious overlapping effect and cross-border characteristics in the process of crisis.Absence of ethics in urban public crisis is reflected in the loss of conceptual ethics,institutional ethics and behavioral ethics;therefore,attentions should be paid to the normalization of crisis ethical reflection,the strengthening of the popularization of the responsibility ethic cultivation,the standardization of et...