A remote controller setting method using display identification data (EDID) includes transmitting, by a TV, EDID information to a set-top box, when the set-top box is connected to the TV through a high definition multimedia interface cable, and analyzing, by the set-top box, the EDID information to grasp a manufacturer's name of the TV and transmitting, to a remote controller, the manufacturer's name of the TV or infrared (IR) code information corresponding to the TV manufacturer to allow the remote controller to remotely control the TV (5).