In a wireless communication system which includes a first electronic device, a second electronic device, and a plurality of third electronic devices, a pairing method of pairing the second electronic device and a particular third electronic device, includes a step in which the first electronic device receives a plurality of pass keys from part or all of the plurality of third electronic devices, a step in which the first electronic device identifies that a pass key of the particular third electronic device is included in the plurality of pass keys using identification information, a step of transmitting the pass key of the particular third electronic device to the second electronic device, a step in which the second electronic device transmits the pass key of the second electronic device to the particular third electronic device, and a step of establishing connection between the second and third electronic devices.