Broadcasting signal retransmitting system and method using illuminated light communication

A broadcasting signal retransmission system using illuminated light communication and a method therefor are provided to transmit receiving broadcasting signals on each channel through the illuminated light communication using a power line by receiving the broadcasting signals, thus a user can selectively watch the broadcasting signals in the user's place. LED(Light Emitting Diode) illuminators(700,720,740,760) convert broadcasting signals of channels sent through a power line into optical signals, and output the signals as illuminated light. Smart communicators(800,820,840,860) transmit the current location information and broadcasting signal transmission request information of the channels, and decode the illuminated light into broadcasting signals to output the decoded signals. A home server(100) receives multi-channel broadcasting signals, sets transmission paths based on the current location information of the communicators(800,820,840,860), and transmits the broadcasting signals of the channels to the illuminators(700,720,740,760) through the power line.