Abstract: Different from the extant research，which have been limited to investigating the organization and the function of the police system，this article is to analyze the establishment of the police system in Mukden， focusing on the changing shape of the local administrative system． In so doing the author concentrates on the process of establishing the police system and its relationship with the existing local administration． Up to now，many of the studies on the police system during the late Qing have emphasized its modern aspects: the function of the “premodern ” administration system has been regarded negatively; the connection of the premodern administration with the police system has not received enough attention． As the police system absorbed some functions of the magistrate and the existing local administration into its own services，the administrative duties of the magistrate were reduced． The police system played a role in supporting and assisting the duties of the magistrate．