In recent years，the major media widely reported news and information about the violence in law enforcement of urban management，which showing internecine scene. On the one hand，image of city inspectors goes from bad to worse，trust and support of public to city inspectors drops to the freezing point；on the other hand，some lawless elements slander，or even violent resistance to law，impact processes and enthusiasm of public to participate in city governance seriously in the form of public participation. On the surface，it seems contradiction between the public participation in the city governance and law enforcement of urban management，in-depth analysis，it exists significant misconception，the problem is the existence of phenomenon of confusion and dislocation between subjects of abstract and concrete administrative behavior of public participation in the city governance. This article tried to analyze prominent contradictions，put forward the corresponding countermeasures，and strived to build up more objective cognition about current phenomenon，and proposed countermeasures，by combing the related concepts.