An unmanned aerial vehicle (UAV) may include: a flight body; a camera installed on the flight body; a sensor module mounted inside the flight body to sense nearby surroundings; a wireless communication module mounted inside the flight body to wirelessly communicate with an external communication device; a processor mounted inside the flight body and electrically connected with the camera, the sensor module, and the wireless communication module; and a memory electrically connected with the processor. The memory may store instructions that, when the unmanned aerial vehicle is in flight, cause the processor to: identify a first geofence region; broadcast flight information on a periodic basis; receive flight information from a second unmanned aerial vehicle in flight; determine whether there is an overlap between the first geofence region and a second geofence region of the second unmanned aerial vehicle; and if so, reset the first geofence region so that the first geofence region does not overlap with the second geofence region.