The invention discloses an unmanned aerial vehicle city safety patrol inspection system. The system comprises a mobile bracelet, communication base points, a mobile terminal and a fixed terminal, wherein the mobile bracelet is carried by a user and used for sending a distress signal; the communication base points are distributed throughout a city, and used for receiving the distress signal of the mobile bracelet, generating an alarm signal and sending the alarm signal to the mobile terminal; and the mobile terminal comprises a data processor, and a positioning and navigation module, an aerial photographing processor, a voice system, a lighting system, a clock module, an alarm system and a wireless communication module which are connected with the data processor. The system provided by the invention has the advantages that through communication cooperation between the mobile bracelet, the communication base points, the mobile terminal and the fixed terminal, monitoring and remote alarming for an emergency situation can be carried out in the first place to draw the attention of people nearby, and criminal evidence can be preserved to improve the crime solving efficiency, so that city safety emergencies are effectively prevented, life and property safety of the public is guaranteed, the social order is maintained, and broad market prospects are achieved.