A positioning system including at least three electronic devices (210, 220, 230, 240), configured to locate a position of at least one of the at least three electronic devices, each of the at least three electronics device comprising: a sensor module configured to track a movement of an electronic device including the sensor module; a communication module configured to communicate with other electronic devices; a memory; and at least one processor operatively connected with the sensor module, the communication module, and the memory, wherein one of the electronic devices is set to a master electronic device; wherein the processor of the master electronic device is configured: to request remaining electronic devices other than the master electronic device to track movements; to receive movement information comprising a movement distance between a current position and a previous position of the remaining electronic devices, to generate a resulting message table based on the movement information received from the remaining electronic devices and a movement of the master electronic device; to transmit the resulting message table to the remaining electronic devices; and to set an electronic device with a least amount of movement of the electronic devices to the first reference device, an electronic device with a second least amount of movement of the electronic devices to the second reference device and at least one remaining electronic device to a normal electronic device, respectively, wherein the processor of the first reference device is configured to calculate a distance between the first reference device and the second reference device and a distance between the first reference device and the normal electronic device, to receive distance information between the second reference device and the normal electronic device, and to calculate positions of the normal electronic device by a triangulation method, based on the distance information among the first reference device, the second reference device, and the normal electronic device, and wherein the processor of the second reference device is configured to calculate a distance between the second reference device and the normal electronic device, and to transmit the calculated distance information to the first reference device. a sensor module configured to track a movement of an electronic device including the sensor module; a communication module configured to communicate with other electronic devices; a memory; and at least one processor operatively connected with the sensor module, the communication module, and the memory, wherein one of the electronic devices is set to a master electronic device; wherein the processor of the master electronic device is configured: to request remaining electronic devices other than the master electronic device to track movements; to receive movement information comprising a movement distance between a current position and a previous position of the remaining electronic devices, to generate a resulting message table based on the movement information received from the remaining electronic devices and a movement of the master electronic device; to transmit the resulting message table to the remaining electronic devices; and to set an electronic device with a least amount of movement of the electronic devices to the first reference device, an electronic device with a second least amount of movement of the electronic devices to the second reference device and at least one remaining electronic device to a normal electronic device, respectively, to request remaining electronic devices other than the master electronic device to track movements; to receive movement information comprising a movement distance between a current position and a previous position of the remaining electronic devices, to generate a resulting message table based on the movement information received from the remaining electronic devices and a movement of the master electronic device; to transmit the resulting message table to the remaining electronic devices; and to set an electronic device with a least amount of movement of the electronic devices to the first reference device, an electronic device with a second least amount of movement of the electronic devices to the second reference device and at least one remaining electronic device to a normal electronic device, respectively, wherein the processor of the first reference device is configured to calculate a distance between the first reference device and the second reference device and a distance between the first reference device and the normal electronic device, to receive distance information between the second reference device and the normal electronic device, and to calculate positions of the normal electronic device by a triangulation method, based on the distance information among the first reference device, the second reference device, and the normal electronic device, and wherein the processor of the second reference device is configured to calculate a distance between the second reference device and the normal electronic device, and to transmit the calculated distance information to the first reference device.