A location providing device for a swarm flight according to an embodiment of the present invention is obtained by the second aircraft from a second aircraft performing the swarm flight together with a first aircraft including the location providing device at a first time point. A communication unit for receiving information on a GPS signal and information on a time interval at which the second vehicle acquires a GPS signal; A control unit determining a second time to store the GPS signal of the first vehicle based on the time interval; And a GPS receiver for receiving a GPS signal from a GPS satellite at the second time, wherein the control unit stores the GPS signal of the first flight vehicle at the second time, and the communication unit The aircraft receives information on the GPS signal acquired at the second time and information on the time interval, and the control unit is based on the time interval from a third time to the first aircraft at the second time. The relative position of the second aircraft may be calculated, and the calculated relative position may be numerically integrated to calculate the relative position of the second aircraft with respect to the first aircraft at the third time.